Helena M. Käyhty
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Helena M. Käyhty's Degrees
- PhD Microbiology University of Helsinki
- Doctorate Medicine University of Helsinki
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(Suggest an Edit or Addition)Helena M. Käyhty's Published Works
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Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- Efficacy of a pneumococcal conjugate vaccine against acute otitis media. (2001) (1470)
- The fundamental link between pneumococcal carriage and disease (2012) (534)
- The protective level of serum antibodies to the capsular polysaccharide of Haemophilus influenzae type b. (1983) (494)
- Haemophilus influenzae type b capsular polysaccharide vaccine in children: a double-blind field study of 100,000 vaccinees 3 months to 5 years of age in Finland. (1977) (485)
- Reduction of oropharyngeal carriage of Haemophilus influenzae type b (Hib) in children immunized with an Hib conjugate vaccine. (1991) (378)
- Serological criteria for evaluation and licensure of new pneumococcal conjugate vaccine formulations for use in infants. (2003) (357)
- Prevention of Hemophilus influenzae type b bacteremic infections with the capsular polysaccharide vaccine. (1984) (337)
- A randomized, prospective field trial of a conjugate vaccine in the protection of infants and young children against invasive Haemophilus influenzae type b disease. (1990) (327)
- Enzyme-Linked Immunosorbent Assay for Quantitation of Human Antibodies to Pneumococcal Polysaccharides (2003) (323)
- Clinical efficacy of meningococcus group A capsular polysaccharide vaccine in children three months to five years of age. (1977) (310)
- Efficacy of Haemophilus influenzae type b polysaccharide-diphtheria toxoid conjugate vaccine in infancy. (1987) (266)
- Protective efficacy of a second pneumococcal conjugate vaccine against pneumococcal acute otitis media in infants and children: randomized, controlled trial of a 7-valent pneumococcal polysaccharide-meningococcal outer membrane protein complex conjugate vaccine in 1666 children. (2003) (240)
- Polysaccharide vaccines of group A Neisseria meningtitidis and Haemophilus influenzae type b: a field trial in Finland. (1977) (218)
- Pneumococcal polysaccharide-meningococcal outer membrane protein complex conjugate vaccine is immunogenic in infants and children. (1995) (193)
- Serum antibodies after vaccination with Haemophilus influenzae type b capsular polysaccharide and responses to reimmunization: no evidence of immunologic tolerance or memory. (1984) (172)
- Multicenter comparison of Neisseria meningitidis serogroup C anti-capsular polysaccharide antibody levels measured by a standardized enzyme-linked immunosorbent assay (1994) (168)
- Natural development of antibodies to pneumococcal surface protein A, pneumococcal surface adhesin A, and pneumolysin in relation to pneumococcal carriage and acute otitis media. (2000) (166)
- Randomised trial of the effect of co-administration with acellular pertussis DTP vaccine on immunogenicity of Haemophilus influenzae type b conjugate vaccine (1996) (160)
- Avidity of IgG for Streptococcus pneumoniae type 6B and 23F polysaccharides in infants primed with pneumococcal conjugates and boosted with polysaccharide or conjugate vaccines. (1998) (143)
- Streptococcus pneumoniae capsular polysaccharide-diphtheria toxoid conjugate vaccine is immunogenic in early infancy and able to induce immunologic memory. (1998) (138)
- Pentavalent pneumococcal oligosaccharide conjugate vaccine PncCRM is well-tolerated and able to induce an antibody response in infants. (1996) (137)
- Aging reduces the functionality of anti-pneumococcal antibodies and the killing of Streptococcus pneumoniae by neutrophil phagocytosis. (2011) (121)
- EFFECT OF GROUP-A MENINGOCOCCAL VACCINE IN ARMY RECRUITS IN FINLAND (1975) (115)
- ANTIBODY LEVELS ACHIEVED IN INFANTS BY COURSE OF HAEMOPHILUS INFLUENZAE TYPE B POLYSACCHARIDE/DIPHTHERIA TOXOID CONJUGATE VACCINE (1985) (109)
- Effect of HIV infection status and anti-retroviral treatment on quantitative and qualitative antibody responses to pneumococcal conjugate vaccine in infants. (2010) (107)
- Serum antibodies to capsular polysaccharide vaccine of group A Neissera meningitidis followed for three years in infants and children. (1980) (104)
- Effects of feeding probiotics during weaning on infections and antibody responses to diphtheria, tetanus and Hib vaccines (2007) (102)
- Immunogenicity and Tolerability of a Heptavalent Pneumococcal Conjugate Vaccine Administered at 3, 5 and 12 Months of Age (2005) (102)
- Quantitative and Qualitative Antibody Response to Pneumococcal Conjugate Vaccine Among African Human Immunodeficiency Virus-Infected and Uninfected Children (2005) (102)
- Vaccination with Haemophilus influenzae type b meningococcal protein conjugate vaccine reduces oropharyngeal carriage of Haemophilus influenzae type b among American Indian children (1993) (97)
- Effects of Ageing and Gender on Naturally Acquired Antibodies to Pneumococcal Capsular Polysaccharides and Virulence-Associated Proteins (2008) (96)
- Anti-capsular polysaccharide antibody concentrations in saliva after immunization with Haemophilus influenzae type b conjugate vaccines. (1995) (94)
- Pneumococcal carriage and otitis media induce salivary antibodies to pneumococcal surface adhesin a, pneumolysin, and pneumococcal surface protein a in children. (2001) (92)
- Cross-reactivity of antibodies to type 6B and 6A polysaccharides of Streptococcus pneumoniae, evoked by pneumococcal conjugate vaccines, in infants. (2001) (91)
- Immunization with a pneumococcal capsular polysaccharide vaccine during pregnancy. (1996) (91)
- Natural development of antibodies to pneumococcal capsular polysaccharides depends on the serotype: association with pneumococcal carriage and acute otitis media in young children. (2001) (90)
- Response to vaccination against different types of antigens in patients with chronic lymphocytic leukaemia (2001) (90)
- Nasopharyngeal colonization: a target for pneumococcal vaccination (2006) (90)
- Serum and salivary anti-capsular antibodies in infants and children immunized with the heptavalent pneumococcal conjugate vaccine (2001) (86)
- Avidity and subclasses of IgG after immunization of infants with an 11-valent pneumococcal conjugate vaccine with or without aluminum adjuvant. (2001) (85)
- Differences in the avidity of antibodies evoked by four different pneumococcal conjugate vaccines in early childhood. (1999) (84)
- Antibody response to capsular polysaccharides of groups A and C neisseria meningitidis and Haemophilus influenzae type b during bacteremic disease. (1981) (83)
- Immunogenicity in infants of a vaccine composed of Haemophilus influenzae type b capsular polysaccharide mixed with DPT or conjugated to diphtheria toxoid. (1987) (78)
- Dose dependency of antibody response in infants and children to pneumococcal polysaccharides conjugated to tetanus toxoid. (1999) (77)
- IgG subclass distribution of antibodies after vaccination of adults with pneumococcal conjugate vaccines. (1999) (77)
- Difficulties in establishing a serological correlate of protection after immunization with Haemophilus influenzae conjugate vaccines. (1994) (77)
- Current State of Pneumococcal Vaccines (2002) (75)
- Impact of the Conjugation Method on the Immunogenicity of Streptococcus pneumoniae Serotype 19F Polysaccharide in Conjugate Vaccines (2010) (75)
- Isotype concentrations of human antibodies to Haemophilus influenzae type b polysaccharide (Hib) in young adults immunized with the polysaccharide as such or conjugated to a protein (diphtheria toxoid). (1987) (74)
- Streptococcus pneumoniae Capsular Serotype 19F Is More Resistant to C3 Deposition and Less Sensitive to Opsonophagocytosis than Serotype 6B (2008) (72)
- A comparison of early and late vaccination with Haemophilus influenzae type b conjugate and pneumococcal polysaccharide vaccines after allogeneic BMT. (1996) (71)
- Evaluation of two tetravalent (ACYW135) meningococcal vaccines in infants and small children: a clinical study comparing immunogenicity of O-acetyl-negative and O-acetyl-positive group C polysaccharides. (1985) (71)
- Multilaboratory Evaluation of a Viability Assay for Measurement of Opsonophagocytic Antibodies Specific to the Capsular Polysaccharides of Streptococcus pneumoniae (2003) (71)
- Anti-capsular polysaccharide antibodies reduce nasopharyngeal colonization by Haemophilus influenzae type b in infant rats. (1993) (69)
- Genes involved in Haemophilus influenzae type b capsule expression are frequently amplified. (1993) (69)
- Development of natural antibodies to pneumococcal surface protein A, pneumococcal surface adhesin A and pneumolysin in Filipino pregnant women and their infants in relation to pneumococcal carriage. (2006) (68)
- Tolerability and immunogenicity of an 11-valent pneumococcal conjugate vaccine in adults. (2001) (67)
- New vaccines for the prevention of pneumococcal infections. (1995) (67)
- Antibody responses to four Haemophilus influenzae type b conjugate vaccines. (1991) (67)
- Vaccination and the role of capsular polysaccharide antibody in prevention of recurrent meningococcal disease in late complement component-deficient individuals. (1993) (67)
- Evaluation of Pneumococcal Polysaccharide Immunoassays Using a 22F Adsorption Step with Serum Samples from Infants Vaccinated with Conjugate Vaccines (2009) (66)
- Kinetics and Avidity of Antibodies Evoked by Heptavalent Pneumococcal Conjugate Vaccines PncCRM and PncOMPC in the Finnish Otitis Media Vaccine Trial (2005) (66)
- Increase in titers of antibodies to Mycoplasma pneumoniae in patients with purulent meningitis. (1982) (65)
- Immunogenicity and Safety of the Eleven Valent Pneumococcal Polysaccharide-Protein D Conjugate Vaccine in Infants (2004) (65)
- Long term effects of vaccination of patients deficient in a late complement component with a tetravalent meningococcal polysaccharide vaccine. (2003) (63)
- The Capsular Serotype of Streptococcus pneumoniae Is More Important than the Genetic Background for Resistance to Complement (2010) (63)
- Serotype-specific hyporesponsiveness to pneumococcal conjugate vaccine in infants carrying pneumococcus at the time of vaccination. (2010) (61)
- Immunogenicity and effectiveness of Haemophilus influenzae type b conjugate vaccine in HIV infected and uninfected African children. (2005) (61)
- High antibody responses to booster doses of either Haemophilus influenzae capsular polysaccharide or conjugate vaccine after primary immunization with conjugate vaccines. (1992) (60)
- Vaccination Against Infections in Chronic Lymphocytic Leukemia (2003) (60)
- Synthetic trimer and tetramer of 3-beta-D-ribose-(1-1)-D-ribitol-5-phosphate conjugated to protein induce antibody responses to Haemophilus influenzae type b capsular polysaccharide in mice and monkeys (1992) (60)
- Multilaboratory Comparison of Streptococcus pneumoniae Opsonophagocytic Killing Assays and Their Level of Agreement for the Determination of Functional Antibody Activity in Human Reference Sera (2010) (59)
- Loss of protective immunity to polio, diphtheria and Haemophilus influenzae type b after allogeneic bone marrow transplantation (1996) (59)
- Salivary anti-capsular antibodies in infants and children immunised with Streptococcus pneumoniae capsular polysaccharides conjugated to diphtheria or tetanus toxoid. (2000) (59)
- Immunogenicity and reactogenicity of 23-valent pneumococcal polysaccharide vaccine among pregnant Filipino women and placental transfer of antibodies. (2007) (59)
- Long-term persistence of immunity after immunisation with Haemophilus influenzae type b conjugate vaccine. (2003) (58)
- Neonatal immunization: response to Haemophilus influenzae type b-tetanus toxoid conjugate vaccine. (1995) (58)
- Tolerability and immunogenicity of an eleven-valent pneumococcal conjugate vaccine in healthy toddlers. (2001) (58)
- Development of antibodies against pneumococcal proteins alpha-enolase, immunoglobulin A1 protease, streptococcal lipoprotein rotamase A, and putative proteinase maturation protein A in relation to pneumococcal carriage and Otitis Media. (2004) (58)
- New vaccines for prevention of pneumococcal infections. (1996) (57)
- Interaction of Pneumococcal Histidine Triad Proteins with Human Complement (2010) (57)
- Human antibodies to pneumococcal surface protein A in health and disease (2000) (56)
- Effects of Sample Collection and Storage Methods on Antipneumococcal Immunoglobulin A in Saliva (2003) (56)
- Pneumococcal carriage and otitis media induce salivary antibodies to pneumococcal capsular polysaccharides in children. (2002) (55)
- Are the Enzyme Immunoassays for Antibodies to Pneumococcal Capsular Polysaccharides Serotype Specific? (2000) (53)
- Antibodies to Pneumococcal Proteins PhtD, CbpA, and LytC in Filipino Pregnant Women and Their Infants in Relation to Pneumococcal Carriage (2009) (53)
- Quantitative and qualitative anamnestic immune responses to pneumococcal conjugate vaccine in HIV-infected and HIV-uninfected children 5 years after vaccination. (2009) (53)
- Pneumococcal conjugate vaccination in toddlers: mucosal antibody response measured as circulating antibody-secreting cells and as salivary antibodies. (1999) (52)
- Colonisation endpoints in Streptococcus pneumoniae vaccine trials. (2013) (52)
- An analytical model applied to a multicenter pneumococcal enzyme-linked immunosorbent assay study. (2000) (52)
- Circulating antibody secreting cell response to parenteral pneumococcal vaccines as an indicator of a salivary IgA antibody response. (1998) (51)
- Tolerability and immunogenicity of an eleven valent mixed carrier Streptococcus pneumoniae capsular polysaccharide-diphtheria toxoid or tetanus protein conjugate vaccine in Finnish and Israeli infants (2004) (51)
- Serotype-Related Variation in Susceptibility to Complement Deposition and Opsonophagocytosis among Clinical Isolates of Streptococcus pneumoniae (2010) (50)
- Evolution of conjugate vaccines (2002) (49)
- Functional Antibodies Elicited by Two Heptavalent Pneumococcal Conjugate Vaccines in the Finnish Otitis Media Vaccine Trial (2007) (48)
- Serum and salivary anti-capsular antibodies in infants and children vaccinated with octavalent pneumococcal conjugate vaccines, PncD and PncT. (2001) (48)
- Maternal immunization with pneumococcal polysaccharide vaccine in the Philippines. (2003) (47)
- Isotype concentrations of human antibodies to group A meningococcal polysaccharide. (1986) (47)
- Interlaboratory study evaluating quantitation of antibodies to Haemophilus influenzae type b polysaccharide by enzyme-linked immunosorbent assay (1996) (46)
- Human Antibody Responses to Two Conjugate Vaccines of Haemophilus influenzae Type B Saccharides and Diphtheria Toxin (1988) (46)
- Clinical comparison of the Haemophilus influenzae type B polysaccharide-diphtheria toxoid and the oligosaccharide-CRM197 protein vaccines in infancy. (1994) (45)
- Antibody response to an eleven valent diphtheria- and tetanus-conjugated pneumococcal conjugate vaccine in Filipino infants (2002) (45)
- Effect of transplacentally acquired tetanus antibodies on the antibody responses to Haemophilus influenzae type b-tetanus toxoid conjugate and tetanus toxoid vaccines in Filipino infants. (1999) (44)
- Pneumococcal conjugate vaccination in adults: circulating antibody secreting cell response and humoral antibody responses in saliva and in serum. (1998) (44)
- Passively acquired anti-tetanus and anti-Haemophilus antibodies and the response to Haemophilus influenzae type b-tetanus toxoid conjugate vaccine in infancy. (1996) (44)
- Greater antibody responses to an eleven valent mixed carrier diphtheria- or tetanus-conjugated pneumococcal vaccine in Filipino than in Finnish or Israeli infants (2003) (43)
- Mechanism of antibody-mediated reduction of nasopharyngeal colonization by Haemophilus influenzae type b studied in an infant rat model. (1996) (40)
- Immunologic priming by one dose of Haemophilus influenzae type b conjugate vaccine in infancy. (1995) (39)
- Vaccination of patients deficient in a late complement component with tetravalent meningococcal capsular polysaccharide vaccine (1995) (38)
- Comparison of counter-current immunoelectrophoresis, latex agglutination, and radioimmunoassay in detection of soluble capsular polysaccharide antigens of Haemophilus influenzae type b and Neisseria meningitidis of groups A or C. (1978) (38)
- Isotype distribution and bactericidal activity of antibodies after immunization with Haemophilus influenzae type b vaccines at 18-24 months of age. (1988) (38)
- Specific antibody deficiency in children with recurrent respiratory infections: a controlled study with follow‐up (2013) (38)
- An Analytical Model Applied to a Multicenter Pneumococcal Enzyme-Linked Immunosorbent Assay Study (2000) (37)
- Distinct geographic distribution of subtypes of Haemophilus influenzae type b in Western Europe. (1987) (36)
- Simultaneous administration of Haemophilus influenzae type b capsular polysaccharide-diphtheria toxoid conjugate vaccine with routine diphtheria-tetanus-pertussis and inactivated poliovirus vaccinations of childhood. (1988) (36)
- Tetravalent meningococcal polysaccharide vaccine is immunogenic in adult allogeneic BMT recipients (2001) (35)
- Pneumococcal carriage and acute otitis media induce serum antibodies to pneumococcal surface proteins CbpA and PhtD in children. (2009) (34)
- Meningococcus group A vaccine in children three months to five years of age. Adverse reactions and immunogenicity related to endotoxin content and molecular weight of the polysaccharide. (1978) (33)
- Mother-infant vaccination with pneumococcal polysaccharide vaccine: persistence of maternal antibodies and responses of infants to vaccination. (2011) (33)
- Activation of Cell‐Mediated Immunity Following Immunization with Pneumococcal Conjugate or Polysaccharide Vaccine * (2001) (33)
- Are the Opsonophagocytic Activities of Antibodies in Infant Sera Measured by Different Pneumococcal Phagocytosis Assays Comparable? (2001) (32)
- Specificities and Opsonophagocytic Activities of Antibodies to Pneumococcal Capsular Polysaccharides in Sera of Unimmunized Young Children (2002) (32)
- Assignment of Immunoglobulin G1 and G2 Concentrations to Pneumococcal Capsular Polysaccharides 3, 6B, 14, 19F, and 23F in Pneumococcal Reference Serum 89-SF (1998) (31)
- Development of Antibodies to PspA Families 1 and 2 in Children after Exposure to Streptococcus pneumoniae (2008) (31)
- Dose response of CRM197 and tetanus toxoid-conjugated Haemophilus influenzae type b vaccines. (2004) (31)
- A randomized study on donor immunization with tetanus–diphtheria, Haemophilus influenzae type b and inactivated poliovirus vaccines to improve the recipient responses to the same vaccines after allogeneic bone marrow transplantation (2007) (30)
- Serum Antibodies to Pneumococcal Neuraminidase NanA in Relation to Pneumococcal Carriage and Acute Otitis Media (2006) (30)
- Antibody-Dependent Killing of Meningococci by Human Neutrophils in Serum of Late Complement Component-Deficient Patients (2003) (30)
- Experience in Finland with Haemophilus influenzae type b vaccines. (1991) (30)
- Similar antibody concentrations in Filipino infants at age 9 months, after 1 or 3 doses of an adjuvanted, 11-valent pneumococcal diphtheria/tetanus-conjugated vaccine: a randomized controlled trial. (2004) (29)
- Haemophilus Influenzae Type b (Hib) Antibody Concentrations and Vaccination Responses in Patients with Chronic Lymphocytic Leukaemia: Predicting Factors for Response (2002) (29)
- Serum IgM Antibodies Contribute to High Levels of Opsonophagocytic Activities in Toddlers Immunized with a Single Dose of the 9-Valent Pneumococcal Conjugate Vaccine (2012) (28)
- Booster response to the tetanus and diphtheria toxoid carriers of 11-valent pneumococcal conjugate vaccine in adults and toddlers. (2001) (28)
- Monoclonal antibodies specific to porin of Haemophilus influenzae type b: localization of their cognate epitopes and tests of their biological activities (1992) (28)
- Genotypic and Phenotypic Characterization of Carriage and Invasive Disease Isolates of Neisseria meningitidis in Finland (2011) (28)
- The infant rat model adapted to evaluate human sera for protective immunity to group B meningococci. (1999) (28)
- Immunogenicity of Haemophilus influenzae oligosaccharide-protein and polysaccharide-protein conjugate vaccination of children at 4, 6, and 14 months of age. (1989) (28)
- Monoclonal antibodies to the rough lipopolysaccharide of Neisseria meningitidis protect infant rats from meningococcal infection. (1988) (28)
- Nasopharyngeal antibodies to pneumococcal capsular polysaccharides in children with acute otitis media. (1995) (28)
- Salivary antibody response to vaccination with meningococcal A/C polysaccharide vaccine in previously vaccinated and unvaccinated Gambian children. (2000) (27)
- Dynamics of natural immunity caused by subclinical infections, case study on Haemophilus influenzae type b (Hib) (2000) (27)
- Comparison of five different vaccination schedules with Haemophilus influenzae type b-tetanus toxoid conjugate vaccine. (1996) (26)
- Anti-PsaA and the risk of pneumococcal AOM and carriage. (2003) (26)
- Ten years' experience with Haemophilus influenzae type b (Hib) conjugate vaccines in Finland (1996) (26)
- Antibody-secreting cells and their relation to humoral antibodies in serum and in nasopharyngeal aspirates in children with pneumococcal acute otitis media. (1996) (25)
- Haemophilus influenzae type b conjugate vaccine diluted tenfold in diphtheria-tetanus-whole cell pertussis vaccine: a randomized trial. (2002) (25)
- Effect of Gm allotypes on IgG2 antibody responses and IgG2 concentrations in children and adults. (1990) (25)
- Functional antibodies elicited by an 11-valent diphtheria-tetanus toxoid-conjugated pneumococcal vaccine. (2003) (25)
- Radioimmunoassay of capsular polysaccharide antigens of groups A and C meningococci and Haemophilus influenzae type b in cerebrospinal fluid. (1977) (24)
- A Hierarchical Bayesian Model to Predict the Duration of Immunity to Haemophilus Influenzas Type B (1999) (24)
- A fluorescent multiplexed bead-based immunoassay (FMIA) for quantitation of IgG against Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis protein antigens. (2014) (24)
- Comparison of a Classical Phagocytosis Assay and a Flow Cytometry Assay for Assessment of the Phagocytic Capacity of Sera from Adults Vaccinated with a Pneumococcal Conjugate Vaccine (2001) (23)
- Murine monoclonal antibodies to PorA of Neisseria meningitidis show reduced protective activity in vivo against B:15:P1.7,16 subtype variants in an infant rat infection model. (2001) (23)
- Protection by Natural Human Immunoglobulin M Antibody to Meningococcal Serogroup B Capsular Polysaccharide in the Infant Rat Protection Assay Is Independent of Complement-Mediated Bacterial Lysis (2005) (23)
- Similar Humoral Immunity Parameters in Chronic Lymphocytic Leukemia Patients Independent of VH Gene Mutation Status (2004) (23)
- Immunogenicity and reactogenicity of diphtheria, tetanus and pertussis toxoids combined with inactivated polio vaccine, when administered concomitantly with or as a diluent for a Hib conjugate vaccine. (2001) (23)
- Subclass distribution of natural salivary IgA antibodies against pneumococcal capsular polysaccharide of type 14 and pneumococcal surface adhesin A (PsaA) in children (2006) (22)
- Safety and immunogenicity of three doses of an eleven-valent diphtheria toxoid and tetanus protein – conjugated pneumococcal vaccine in Filipino infants (2003) (22)
- Finnish efficacy trials with Haemophilus influenzae type b vaccines. (1992) (22)
- Clinical experience with Haemophilus influenzae type b conjugate vaccines. (1990) (22)
- Studies on a Hib-tetanus toxoid conjugate vaccine: effects of co-administered tetanus toxoid vaccine, of administration route and of combined administration with an inactivated polio vaccine. (1999) (22)
- Class-specific antibody response to Haemophilus influenzae type b capsular polysaccharide vaccine. (1983) (22)
- Antibodies against Haemophilus influenzae type b and tetanus in infants after subcutaneous vaccination with PRP-T/diphtheria, or PRP-OMP/diphtheria-tetanus vaccines. (1994) (22)
- Concentration and High Avidity of Pneumococcal Antibodies Persist at Least 4 Years after Immunization with Pneumococcal Conjugate Vaccine in Infancy (2013) (21)
- Functional activity of antibodies after immunization of Finnish and Israeli infants with an 11-valent pneumococcal conjugate vaccine. (2005) (21)
- Immunization with meningococcal class 1 outer membrane protein produced in Bacillus subtilis and reconstituted in the presence of Zwittergent or Triton X-100. (1996) (21)
- Distribution of Pneumococcal Surface Protein A Families 1 and 2 among Streptococcus pneumoniae Isolates from Children in Finland Who Had Acute Otitis Media or Were Nasopharyngeal Carriers (2008) (21)
- SERUM ANTIBODIES TO THE PNEUMOCOCCAL SURFACE PROTEINS PhtB AND PhtE IN FINNISH INFANTS AND ADULTS (2007) (21)
- Interactions of Haemophilus influenzae with human endothelial cells in vitro. (1992) (21)
- Antibodies to Haemophilus influenzae type b polysaccharide affect bacterial adherence and multiplication (1996) (21)
- Early immunization with conjugate vaccines. (1998) (20)
- Haemophilus influenzae type b and cross-reactive antigens in natural Hib infection dynamics; modelling in two populations (2002) (20)
- Pneumococcal Haemophilus influenzae Protein D Conjugate Vaccine Induces Antibodies That Inhibit Glycerophosphodiester Phosphodiesterase Activity of Protein D (2008) (19)
- Do antibodies to pneumococcal surface adhesin a prevent pneumococcal involvement in acute otitis media? (2001) (19)
- Nasopharyngeal antibodies to pneumococcal pneumolysin in children with acute otitis media (1995) (18)
- Immunological properties of recombinant porin of Haemophilus influenzae type b expressed in Bacillus subtilis (1993) (18)
- Antibody responses of three Haemophilus influenzae type b conjugate vaccines after one, two and three doses in Filipino children. (1998) (18)
- Design questions for Streptococcus pneumoniae vaccine trials with a colonisation endpoint. (2013) (18)
- Salivary antibodies induced by the seven-valent PncOMPC conjugate vaccine in the Finnish Otitis Media Vaccine Trial (2005) (18)
- Antibody response to pneumococcal capsular polysaccharides in children with acute otitis media (2002) (17)
- Antibody response to Haemophilus influenzae type-b conjugate vaccine in children and young adults with congenital asplenia or after undergoing splenectomy (2011) (17)
- IgG subclasses and avidity of antibodies to polysaccharide antigens in allogeneic BMT recipients after vaccination with pneumococcal polysaccharide and Haemophilus influenzae type b conjugate vaccines (1999) (16)
- Immunogenicity and reactogenicity of four Haemophilus influenzae type b capsular polysaccharide vaccines in Finnish 24-month-old children. (1988) (16)
- Infection by Streptococcus pneumoniae in children with or without radiologically confirmed pneumonia. (2018) (16)
- Susceptibility of gram-negative bacteria to the synergistic bactericidal action of serum and polymyxin B nonapeptide. (1986) (16)
- Salivary antibodies induced by the seven-valent PncCRM conjugate vaccine in the Finnish Otitis Media Vaccine Trial. (2004) (16)
- Antibodies to pneumolysin and pneumococcal capsular polysaccharides in middle ear fluid of children with acute otitis media. (1995) (15)
- Immunogenicity assays and surrogate markers to predict vaccine efficacy. (1998) (15)
- Serum antibodies against haemophilus influenzae type b and tetanus at 2.5 years of age: a follow-up of 2 different regimens of infant vaccination. (1996) (15)
- Vaccination of Children during Treatment for Leukemia (1986) (15)
- Protection by Meningococcal Outer Membrane Protein PorA-Specific Antibodies and a Serogroup B Capsular Polysaccharide-Specific Antibody in Complement-Sufficient and C6-Deficient Infant Rats (2006) (14)
- Immunity after (re)vaccination of paediatric patients following haematopoietic stem cell transplantation (2012) (14)
- Antibody persistence after pneumococcal conjugate vaccination in patients with chronic lymphocytic leukemia (2018) (13)
- Adenoidectomy and nasopharyngeal carriage of Streptococcus pneumoniae in young children (2010) (13)
- Comparison of passive hemagglutination, bactericidal activity, and radioimmunological methods in measuring antibody responses to Neisseria meningitidis group A capsular polysaccharide vaccine (1980) (13)
- Detection of antibody responses against Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis proteins in children with community-acquired pneumonia: effects of combining pneumococcal antigens, pre-existing antibody levels, sampling interval, age, and duration of illness (2015) (13)
- Bridging phase 2 and phase 3 pneumococcal immunologic data for future combination vaccines. (2001) (13)
- Antibody response to the 23-valent pneumococcal polysaccharide vaccine after conjugate vaccine in patients with chronic lymphocytic leukemia (2019) (12)
- Passive protection in the infant rat protection assay by sera taken before and after vaccination of teenagers with serogroup B meningococcal outer membrane vesicle vaccines. (2005) (12)
- Sero- and subtypes of group B meningococci causing invasive infections in Finland in 1976-87. (1989) (12)
- Latex agglutination test for screening of Haemophilus influenzae type b carriers (1987) (12)
- Clinical evaluation of new pneumococcal vaccines: the Finnish approach. (1998) (12)
- Immune response to tetravalent meningococcal vaccine: Opsonic and bactericidal functions of normal and properdin deficient sera (1989) (11)
- Association of Serotype-Specific Antibody Concentrations and Functional Antibody Titers with Subsequent Pneumococcal Carriage in Toddlers Immunized with a 9-Valent Pneumococcal Conjugate Vaccine (2011) (11)
- A randomized, controlled trial comparing the immunogenecity and safety of a 23‐valent pneumococcal polysaccharide vaccination to a repeated dose 13‐valent pneumococcal conjugate vaccination in kidney transplant recipients (2020) (10)
- Serological diagnosis of pneumococcal infection in children with pneumonia using protein antigens: A study of cut-offs with positive and negative controls. (2016) (10)
- Safety and immunogenicity of a DTaP-IPV(Vero) (serum-free) combination vaccine in comparison to DTaP-IPV(Mkc) when administered simultaneously with Haemophilus influenzae type B conjugate vaccine (PRP-T) in children at 2, 3.5, 5 and 16 months of age. (2008) (9)
- Natural Development of Antibodies against Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis Protein Antigens during the First 13 Years of Life (2016) (9)
- Secondary cases of invasive disease caused by spread of Haemophilus influenzae type b. (1987) (9)
- Determination of antibody responses to meningococcal antigens by ELISA. (2001) (8)
- Effect of Pneumococcal Conjugate Vaccine on the Natural Antibodies and Antibody Responses Against Protein Antigens From Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis in Children With Community-acquired Pneumonia (2016) (8)
- Concurrent administration of rhesus rotavirus tetravalent (RRV‐TV) vaccine with pentavalent diphtheria‐pertussis‐tetanus–Haemophilus influenzae b‐inactivated polio and hepatitis B vaccines (1999) (7)
- Antibody responses against Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis in children with acute respiratory infection with or without nasopharyngeal bacterial carriage (2018) (7)
- IgG antibody concentrations after immunization with 11-valent mixed-carrier pneumococcal conjugate vaccine in efficacy trial against pneumonia among Filipino infants. (2009) (7)
- Seasonal patterns and association of meteorological factors with infection caused by Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis in childhood community-acquired pneumonia in a tropical region (2017) (7)
- Meningococcal outbreak in southern Finland (1995) (6)
- Response and persistence of antibodies to PRP-T and DTwP vaccines with concomitant administration of conjugate vaccines. (2007) (6)
- The unspecific antibody response to N. meningitidis group A capsular polysaccharide often seen in bacteraemic diseases (1982) (6)
- Vaccine-Induced Immunity to Pneumococcal Infection (2004) (6)
- Recurrent meningococcal meningitis due to partial complement defects and poor anti-meningococcal antibody response. (1983) (6)
- Reactogenicity and immunogenicity of combined vaccines for bacteraemic diseases caused by Haemophilus influenzae type b, meningococci and pneumococci in 24-month-old children. (1990) (6)
- The Immunological Basis for Immunization Series Module 12 : pneumococcal vaccines (5)
- Adenoidectomy in young children and serum IgG antibodies to pneumococcal surface protein A and choline binding protein A. (2012) (4)
- Quantitative and qualitative antibody responses to a 9-valent pneumococcal conjugate vaccine among African HIV infected and HIV uninfected children (2005) (4)
- Protective efficacy of a second pneumococcal conjugate vaccine against pneumococcal acute otitis media in infants and children: Randomised, controlled trial of a sevenvalent pneumococcal polysaccharide-meningococcal outer membrane protein c (2003) (4)
- Antibodies to pneumococcal pneumolysin and capsular polysaccharides in middle ear fluids of children with acute otitis media (1995) (4)
- Immunogenicity and Reactogenicity of Pneumococcal Conjugate Vaccines in Infants and Children (2008) (3)
- Pneumococcal polysaccharide vaccination administered early after neurotrauma or neurosurgery. (2017) (3)
- Ten years'' experience with Hib conjugate vaccines in Finland (1996) (3)
- LEUKEMIA AND LYMPHOMA (1974) (3)
- A toddler PCV booster dose following 3 infancy priming doses increases circulating serotype-specific IGG levels but does not increase protection against carriage. (2018) (3)
- Vaccination responses to Neisseria meningitidis and Haemophilus influenzae type b in two C2-deficient sisters (2000) (2)
- [Vaccine against Haemophilus influenzae type b--antibody response and adverse effects]. (1995) (2)
- Virulence-Associated Proteins Capsular Polysaccharides and Acquired Antibodies to Pneumococcal Effects of Ageing and Gender on Naturally (2008) (2)
- Lower response to early T-cell-dependent vaccination after neurotrauma or neurosurgery in adults. (2015) (2)
- Types and subtypes of group B meningococci isolated in Finland from 1976 through April 1986 (1988) (2)
- PNEUMOCOCCAL HAEMOPHILUS INFLUENZAE PROTEIN D CONJUGATE (2008) (2)
- Immunological basis for immunization : module 12: pneumococcal vaccines (2009) (2)
- [Were the meningococcal vaccination campaigns in 1974-76 of benefit?]. (1983) (1)
- Antibodies to pneumococcal proteins PspA, PsaA and pneumolysin in saliva of children (1998) (1)
- Interlaboratory study evaluating quantitation of antibodies Haemophilus influenzae type b polysaccharide by ELISA (1996) (1)
- The fundamental link between pneumococcal carriage and (2012) (1)
- Avidity of IgG antibodies for S. pneumoniae type 6B and 23F polysaccharides in infants primed with pneumococcal conjugate vaccines and boostered with polysaccharide or conjugate (1998) (1)
- A randomized, controlled trial comparing the immunogenicity and safety of a 23-valent pneumococcal polysaccharide vaccination to a repeated dose 13-valent pneumococcal conjugate vaccination in adult liver transplant recipients. (2021) (1)
- Conjugate pneumococcal vaccine in HIV-infected Ugandans and the effect of past polysaccharide vaccine vaccine receipt. (2005) (1)
- Tolerability and immunogenicity of an eleven-valent Streptococcus pneumoniae capsular polysaccharide diphtheria and tetanus conjugate vaccine in infants. (2004) (1)
- Radioimmunoassay ofcapsular polysaccharide antigens ofgroupsA andCmeningococci and Haemophilus influenzae typebincerebrospinal fluid (1977) (0)
- Special Section: Nasopharyngeal Carriage in the Pneumococcal Vaccine Licensure Process Foreword (2013) (0)
- Natural antibodies to three pneumococcal proteins PspA, PsaA and pneumolysin in Filipino pregnant women and their offspring. (2006) (0)
- Subject Index Vol. 130, 2003 (2003) (0)
- S221 The added value of measuring function of antibodies in conjugate vaccine trials (2007) (0)
- Antibody response to Haemophilus influenzae type-b conjugate vaccine in children and young adults with congenital asplenia or after undergoing splenectomy (2011) (0)
- [The bactericidal action of human neutrophils on meningococci in vitro]. (1999) (0)
- Effect of HIV-exposure and anti-retroviral treatment on the quantitative and qualitative antibody responses to pneumococcal conjugate vaccine (2010) (0)
- [Severe Haemophilus influenzae infections in children are contagious]. (1986) (0)
- Development of Validated Assays for Measuring the Human Antibody Response to Polysaccharide Conjugate Vaccines (2008) (0)
- Serum opsonic and bactericidal activity after Neisseria meningitidis group A + C and Haemophilus influenzae type b vaccination: a comparison of three functional assays (1997) (0)
- Contents Vol. 130, 2003 (2003) (0)
- Vaccination to reduce colonization of the nasopharynx by pneumococcus: a prevention strategy (2006) (0)
- Pneumococcal Haemophilus influenzae Protein D Conjugate Vaccine Induces Antibodies That Inhibit Glycerophosphodiester Phosphodiesterase Activity of Protein D (cid:1) (2008) (0)
- Applied public health research on the frontline. (2015) (0)
- Detection of antibody responses against Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis proteins in children with community-acquired pneumonia: effects of combining pneumococcal antigens, pre-existing antibody levels, sampling interval, age, and duration of illness (2015) (0)
- Natural development of serum antibodies to pneumococcal proteins in children (1998) (0)
- [Immunogenicity of Haemophilus Influenzae]. (1996) (0)
- [Lack of spleen or spleen malfunction--serious risk factor for sepsis]. (2004) (0)
- Late complement component deficiency and meningococcal disease: Clinical and immunological aspects (1997) (0)
- The conjugation method influences the immunogenicity of Streptococcus pneumoniae 19F conjugate vaccine (2010) (0)
- [Why is the genome sequencing of meningococcus useful for us?]. (2000) (0)
- Pneumococcal conjugate vaccines (PCV). Foreword. (2013) (0)
- typebandNeisseria meningitidis ofgroupsA orC (1978) (0)
- Vaccines Against Bacterial Infections of Children (1991) (0)
- Persistence of antibodies against Haemophilus influenzae type b and tetanus after subcutaneous vaccination with PRP-T/diphtheria or PRP-OMP/diphtheria-tetanus vaccines (1994) (0)
- RESPONSE TO A BOOSTER DOSE OF H.influenzae TYPE B CAPSULAR POLYSACCHARIDE - DIPHTERIA TOXOID CONJUGATE VACCINE (PRP-D) IN CHILDREN INITIALLY IMMUNIZED AT 3- 5-7 OR ONLY 7 MONTHS (1985) (0)
- [New specific bacterial vaccines]. (1976) (0)
- Passively acquired anti-tetanus and anti-Haemophilus antibodies and the response to Haemophilus influenzae type b tetanus conjugate vaccine (1996) (0)
- Comparison of serological assays using pneumococcal proteins or polysaccharides for detection of Streptococcus pneumoniae infection in children with community-acquired pneumonia. (2018) (0)
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What Schools Are Affiliated With Helena M. Käyhty?
Helena M. Käyhty is affiliated with the following schools:
