Published in Microbiology on October 07, 2010
Biochemical, genetic, and serological characterization of two capsule subtypes among Streptococcus pneumoniae Serotype 20 strains: discovery of a new pneumococcal serotype. J Biol Chem (2012) 1.90
Pneumococcal capsular switching: a historical perspective. J Infect Dis (2012) 1.43
Comparison of capsular genes of Streptococcus pneumoniae serotype 6A, 6B, 6C, and 6D isolates. J Clin Microbiol (2011) 1.15
Capsular gene sequences and genotypes of "serotype 6E" Streptococcus pneumoniae isolates. J Clin Microbiol (2013) 1.15
Sequence diversity within the capsular genes of Streptococcus pneumoniae serogroup 6 and 19. PLoS One (2011) 1.12
Multidrug-resistant Streptococcus pneumoniae serotype 6D clones in South Korea. J Clin Microbiol (2011) 1.03
Clonal expansion within pneumococcal serotype 6C after use of seven-valent vaccine. PLoS One (2013) 0.99
Five winters of pneumococcal serotype replacement in UK carriage following PCV introduction. Vaccine (2015) 0.99
Novel pneumococcal serotypes 6C and 6D: anomaly or harbinger. Clin Infect Dis (2012) 0.97
Mechanisms of genome evolution of Streptococcus. Infect Genet Evol (2014) 0.92
Epidemiology of Streptococcus pneumoniae serogroup 6 isolates from IPD in children and adults in Germany. PLoS One (2013) 0.91
Clonal expansion of the macrolide resistant ST386 within pneumococcal serotype 6C in France. PLoS One (2014) 0.87
The 7-valent pneumococcal conjugate vaccine elicits cross-functional opsonophagocytic killing responses to Streptococcus pneumoniae serotype 6D in children. BMC Infect Dis (2013) 0.81
Population biology of 225 serogroup 6 Streptococcus pneumoniae isolates collected in China. BMC Infect Dis (2014) 0.80
Clonal and serotype dynamics of serogroup 6 isolates causing invasive pneumococcal disease in Portugal: 1999-2012. PLoS One (2017) 0.75
Revisiting molecular serotyping of Streptococcus pneumoniae. BMC Genomics (2015) 0.75
The neighbor-joining method: a new method for reconstructing phylogenetic trees. Mol Biol Evol (1987) 266.90
MEGA4: Molecular Evolutionary Genetics Analysis (MEGA) software version 4.0. Mol Biol Evol (2007) 168.76
Complete genome sequence of a virulent isolate of Streptococcus pneumoniae. Science (2001) 21.99
Prospects for inferring very large phylogenies by using the neighbor-joining method. Proc Natl Acad Sci U S A (2004) 20.53
A multilocus sequence typing scheme for Streptococcus pneumoniae: identification of clones associated with serious invasive disease. Microbiology (1998) 17.05
Streptococcus pneumoniae colonisation: the key to pneumococcal disease. Lancet Infect Dis (2004) 9.73
Discovery of a new capsular serotype (6C) within serogroup 6 of Streptococcus pneumoniae. J Clin Microbiol (2007) 7.44
Six newly recognized types of Streptococcus pneumoniae. J Clin Microbiol (1995) 7.32
RDP2: recombination detection and analysis from sequence alignments. Bioinformatics (2004) 7.29
RDP: detection of recombination amongst aligned sequences. Bioinformatics (2000) 6.83
Genetic basis for the new pneumococcal serotype, 6C. Infect Immun (2007) 5.27
THE PROTECTIVE ACTION OF A SPECIFIC ENZYME AGAINST TYPE III PNEUMOCOCCUS INFECTION IN MICE. J Exp Med (1931) 5.05
Evolutionary genetics of the capsular locus of serogroup 6 pneumococci. J Bacteriol (2004) 3.81
Vaccine escape recombinants emerge after pneumococcal vaccination in the United States. PLoS Pathog (2007) 3.65
First report of putative Streptococcus pneumoniae serotype 6D among nasopharyngeal isolates from Fijian children. J Infect Dis (2009) 3.18
Differential effects of pneumococcal vaccines against serotypes 6A and 6C. J Infect Dis (2008) 2.70
Identification of natural pneumococcal isolates expressing serotype 6D by genetic, biochemical and serological characterization. Microbiology (2009) 2.56
PCR-based quantitation and clonal diversity of the current prevalent invasive serogroup 6 pneumococcal serotype, 6C, in the United States in 1999 and 2006 to 2007. J Clin Microbiol (2008) 2.42
Increase in the prevalence of the newly discovered pneumococcal serotype 6C in the nasopharynx after introduction of pneumococcal conjugate vaccine. J Infect Dis (2009) 2.36
A new pneumococcal serotype, 11E, has a variably inactivated wcjE gene. J Infect Dis (2010) 2.23
Occurrence, distribution, and origins of Streptococcus pneumoniae Serotype 6C, a recently recognized serotype. J Clin Microbiol (2008) 2.17
Acquisition of five high-Mr penicillin-binding protein variants during transfer of high-level beta-lactam resistance from Streptococcus mitis to Streptococcus pneumoniae. J Bacteriol (1998) 2.16
Production of a unique pneumococcal capsule serotype belonging to serogroup 6. Microbiology (2009) 2.07
Genetic relatedness of the Streptococcus pneumoniae capsular biosynthetic loci. J Bacteriol (2007) 1.92
Low prevalence of recently discovered pneumococcal serotype 6C isolates among healthy Dutch children in the pre-vaccination era. Vaccine (2007) 1.71
Streptococcus pneumoniae: epidemiology, risk factors, and strategies for prevention. Semin Respir Crit Care Med (2009) 1.67
Temporal trends and molecular epidemiology of recently described serotype 6C of Streptococcus pneumoniae. J Clin Microbiol (2008) 1.57
Current trends in capsular polysaccharide biosynthesis of Streptococcus pneumoniae. Res Microbiol (2000) 1.49
Validation of factor 6d antiserum for serotyping Streptococcus pneumoniae serotype 6C. J Clin Microbiol (2010) 1.48
Single-step capsular transformation and acquisition of penicillin resistance in Streptococcus pneumoniae. J Bacteriol (2004) 1.48
Evolution and virulence of serogroup 6 pneumococci on a global scale. J Bacteriol (2002) 1.37
Emerging pneumococcal carriage serotypes in a high-risk population receiving universal 7-valent pneumococcal conjugate vaccine and 23-valent polysaccharide vaccine since 2001. BMC Infect Dis (2009) 1.18
Fluoroquinolone resistance associated with target mutations and active efflux in oropharyngeal colonizing isolates of viridans group streptococci. Antimicrob Agents Chemother (2000) 1.02
Increase in serotype 6C pneumococcal carriage, United Kingdom. Emerg Infect Dis (2010) 0.94
Complete genome sequence of a virulent isolate of Streptococcus pneumoniae. Science (2001) 21.99
Complete nucleotide sequence of type 6 M protein of the group A Streptococcus. Repetitive structure and membrane anchor. J Biol Chem (1986) 6.38
Molecular typing of methicillin-resistant Staphylococcus aureus by pulsed-field gel electrophoresis: comparison of results obtained in a multilaboratory effort using identical protocols and MRSA strains. Microb Drug Resist (2000) 4.24
Size variation in group A streptococcal M protein is generated by homologous recombination between intragenic repeats. Mol Gen Genet (1987) 3.32
Role of lymphotoxin and the type I TNF receptor in the formation of germinal centers. Science (1996) 3.24
Location of variable and conserved epitopes among the multiple serotypes of streptococcal M protein. J Exp Med (1985) 3.23
The pspC gene of Streptococcus pneumoniae encodes a polymorphic protein, PspC, which elicits cross-reactive antibodies to PspA and provides immunity to pneumococcal bacteremia. Infect Immun (1999) 2.94
Intranasal immunization of mice with a mixture of the pneumococcal proteins PsaA and PspA is highly protective against nasopharyngeal carriage of Streptococcus pneumoniae. Infect Immun (2000) 2.84
Immunization of mice with combinations of pneumococcal virulence proteins elicits enhanced protection against challenge with Streptococcus pneumoniae. Infect Immun (2000) 2.64
Immunization of humans with recombinant pneumococcal surface protein A (rPspA) elicits antibodies that passively protect mice from fatal infection with Streptococcus pneumoniae bearing heterologous PspA. J Infect Dis (2000) 2.55
Intranasal immunization of mice with PspA (pneumococcal surface protein A) can prevent intranasal carriage, pulmonary infection, and sepsis with Streptococcus pneumoniae. J Infect Dis (1997) 2.50
Affinity maturation without germinal centres in lymphotoxin-alpha-deficient mice. Nature (1996) 2.43
Serogroup-specific epidemiology of Streptococcus pneumoniae: associations with age, sex, and geography in 7,000 episodes of invasive disease. Clin Infect Dis (1996) 2.29
Evolutionary pattern of human respiratory syncytial virus (subgroup A): cocirculating lineages and correlation of genetic and antigenic changes in the G glycoprotein. J Virol (1994) 2.29
New fluorescence assay for the quantitation of fungi. J Clin Microbiol (1989) 2.26
Relationship of M protein genes in group A streptococci. Proc Natl Acad Sci U S A (1985) 2.24
Immunization of healthy adults with a single recombinant pneumococcal surface protein A (PspA) variant stimulates broadly cross-reactive antibodies to heterologous PspA molecules. Vaccine (2000) 2.07
Pneumococcal diversity: considerations for new vaccine strategies with emphasis on pneumococcal surface protein A (PspA). Clin Microbiol Rev (1998) 2.06
Genetic correlates of throat and skin isolates of group A streptococci. J Infect Dis (1996) 2.06
Immunochemical localization and amino acid sequences of crossreactive epitopes within the group A streptococcal M6 protein. J Exp Med (1986) 2.03
An analytical model applied to a multicenter pneumococcal enzyme-linked immunosorbent assay study. J Clin Microbiol (2000) 1.97
Mucosal immunization with a bacterial protein antigen genetically coupled to cholera toxin A2/B subunits. J Immunol (1995) 1.89
Three-year assessment of methicillin-resistant Staphylococcus aureus clones in Latin America from 1996 to 1998. J Clin Microbiol (2001) 1.88
Homologous regions within M protein genes in group A streptococci of different serotypes. Infect Immun (1986) 1.85
Endogenous antibodies that interfere with thyroxine fluorescence polarization assay but not with radioimmunoassay or EMIT. Clin Chem (1993) 1.80
Avidity, potency, and cross-reactivity of monoclonal antibodies to pneumococcal capsular polysaccharide serotype 6B. Infect Immun (2001) 1.77
The autolytic enzyme LytA of Streptococcus pneumoniae is not responsible for releasing pneumolysin. J Bacteriol (2001) 1.77
Pneumococcal capsular polysaccharide preparations may contain non-C-polysaccharide contaminants that are immunogenic. Clin Diagn Lab Immunol (1999) 1.74
A microsatellite marker reveals population heterogeneity within human and animal genotypes of cryptosporidium parvum. Parasitology (2000) 1.73
Potential differentiation of human mesenchymal stem cell transplanted in rat corpus cavernosum toward endothelial or smooth muscle cells. Int J Impot Res (2007) 1.72
Low prevalence of recently discovered pneumococcal serotype 6C isolates among healthy Dutch children in the pre-vaccination era. Vaccine (2007) 1.71
Role of putative virulence factors of Streptococcus pyogenes in mouse models of long-term throat colonization and pneumonia. Infect Immun (1997) 1.68
The IS1167 insertion sequence is a phylogenetically informative marker among isolates of serotype 6B Streptococcus pneumoniae. J Mol Evol (1998) 1.68
PspA and PspC: their potential for use as pneumococcal vaccines. Microb Drug Resist (1997) 1.67
Immunity to cross-reactive serotypes induced by pneumococcal conjugate vaccines in infants. J Infect Dis (1999) 1.63
Conformational characteristics of the complete sequence of group A streptococcal M6 protein. Proteins (1988) 1.62
Spontaneous M6 protein size mutants of group A streptococci display variation in antigenic and opsonogenic epitopes. Proc Natl Acad Sci U S A (1988) 1.62
Molecular epidemiology of adenovirus acute lower respiratory infections of children in the south cone of South America (1991-1994). J Med Virol (1996) 1.60
Molecular epidemiologic characterization of penicillin-resistant Streptococcus pneumoniae invasive pediatric isolates recovered in six Latin-American countries: an overview. PAHO/Rockefeller University Workshop. Pan American Health Organization. Microb Drug Resist (1998) 1.54
Genetic linkage of exotoxin alleles and emm gene markers for tissue tropism in group A streptococci. J Infect Dis (1999) 1.52
A rapid pneumococcal serotyping system based on monoclonal antibodies and PCR. J Med Microbiol (2008) 1.48
The potential for using protein vaccines to protect against otitis media caused by Streptococcus pneumoniae. Vaccine (2000) 1.48
Spontaneous secretion of IgG subclasses by intestinal mononuclear cells: differences between ulcerative colitis, Crohn's disease, and controls. Clin Exp Immunol (1986) 1.46
Cytokine expression by germinal center cells. J Immunol (1993) 1.44
High bifurcation of median nerve at the wrist causing common digital nerve injury in endoscopic carpal tunnel release. J Hand Surg Br (2002) 1.43
Fas and Fas ligand enhance the pathogenesis of experimental allergic encephalomyelitis, but are not essential for immune privilege in the central nervous system. J Immunol (1997) 1.41
Liquid chromatographic determination of less polar ginsenosides in processed ginseng. J Chromatogr A (2001) 1.40
Allelic polymorphism of emm loci provides evidence for horizontal gene spread in group A streptococci. Proc Natl Acad Sci U S A (1994) 1.38
Subclass distribution of human antibodies to Haemophilus influenzae type b capsular polysaccharide. J Immunol (1987) 1.38
Clonal characterization of the human IgG antibody repertoire to Haemophilus influenzae type b polysaccharide. IV. The less frequently expressed VL are heterogeneous. J Immunol (1991) 1.37
Hemophilus influenzae type B disease in children vaccinated with type B polysaccharide vaccine. N Engl J Med (1986) 1.36
Bactericidal and opsonic activity of IgG1 and IgG2 anticapsular antibodies to Haemophilus influenzae type b. J Infect Dis (1990) 1.35
T cells within germinal centers are specific for the immunizing antigen. J Immunol (1993) 1.34
Repertoire of human antibodies against the polysaccharide capsule of Streptococcus pneumoniae serotype 6B. Infect Immun (1999) 1.32
Degenerate oligonucleotide primers for enzymatic amplification of recA sequences from gram-positive bacteria and mycoplasmas. J Bacteriol (1992) 1.32
Risk factors and course of illness among children with invasive penicillin-resistant Streptococcus pneumoniae. The Streptococcus pneumoniae Working Group. Pediatrics (1999) 1.31
Pneumococcal surface protein A of invasive Streptococcus pneumoniae isolates from Colombian children. Emerg Infect Dis (2001) 1.30
Cloning and expression of the gene for group B streptococcal hyaluronate lyase. J Biol Chem (1994) 1.29
Use of HL-60 cell line to measure opsonic capacity of pneumococcal antibodies. Clin Diagn Lab Immunol (2005) 1.28
Germinal center T cells are distinct helper-inducer T cells. Hum Immunol (1991) 1.25
An idiotypic marker associated with a germ-line encoded kappa light chain variable region that predominates the vaccine-induced human antibody response to the Haemophilus influenzae b polysaccharide. J Clin Invest (1991) 1.24
Fusion proteins containing family 1 and family 2 PspA fragments elicit protection against Streptococcus pneumoniae that correlates with antibody-mediated enhancement of complement deposition. Infect Immun (2007) 1.23
Maternal immunization with pneumococcal polysaccharide vaccine in the third trimester of gestation. Vaccine (2001) 1.20
In vitro study of contact area and pressure distribution in the human knee after partial and total meniscectomy. Int Orthop (1993) 1.18
Evolution of Streptococcus pneumoniae serotypes and penicillin susceptibility in Latin America, Sireva-Vigía Group, 1993 to 1999. PAHO Sireva-Vigía Study Group. Pan American Health Organization. Pediatr Infect Dis J (2001) 1.18
Clones of Streptococcus pneumoniae isolated from nasopharyngeal carriage and invasive disease in young children in central Tennessee. J Infect Dis (2001) 1.18
Invasive Streptococcus pneumoniae infection in Latin American children: results of the Pan American Health Organization Surveillance Study. Clin Infect Dis (1998) 1.17
Monoclonal antibodies to streptococcal group A carbohydrate. I. A dominant idiotypic determinant is located on Vk. J Immunol (1982) 1.15
Tumor necrosis factor alpha receptor I is important for survival from Streptococcus pneumoniae infections. Infect Immun (1999) 1.15
Structure, function, and genetics of streptococcal M protein. Rev Infect Dis (1988) 1.13
Absence of lymph nodes in lymphotoxin-alpha(LT alpha)-deficient mice is due to abnormal organ development, not defective lymphocyte migration. J Inflamm (1995) 1.12
Establishment of a new human pneumococcal standard reference serum, 007sp. Clin Vaccine Immunol (2011) 1.11
Serological evidence of human Hantavirus infection in Argentina, Bolivia and Uruguay. Medicina (B Aires) (1996) 1.10
The repertoire of human antibodies to the carbohydrate capsule of Streptococcus pneumoniae 6B. J Infect Dis (1996) 1.10
Human antibodies to phosphocholine. IgG anti-PC antibodies express restricted numbers of V and C regions. J Immunol (1987) 1.10
Anterior cingulotomy for refractory obsessive-compulsive disorder. Acta Psychiatr Scand (2003) 1.09
Standardization of glycohemoglobin determinations in the clinical laboratory: three years of experience. Clin Chem (1992) 1.09
A TGF-beta-inducible cell adhesion molecule, betaig-h3, is downregulated in melorheostosis and involved in osteogenesis. J Cell Biochem (2000) 1.09
Pneumococcal pspA sequence types of prevalent multiresistant pneumococcal strains in the United States and of internationally disseminated clones. J Clin Microbiol (2000) 1.08
A report of Streptococcus pneumoniae serotype 6D in Europe. J Med Microbiol (2010) 1.08
PspK of Streptococcus pneumoniae increases adherence to epithelial cells and enhances nasopharyngeal colonization. Infect Immun (2012) 1.06
Human antibodies to group A streptococcal carbohydrate. Ontogeny, subclass restriction, and clonal diversity. J Immunol (1988) 1.05
Capsular type distribution and susceptibility to antibiotics of Streptococcus pneumoniae clinical strains isolated from Uruguayan children with systemic infections. Pneumococcus Study Group. Microb Drug Resist (1997) 1.05
Use of transposon Tn916 to inactivate and isolate a mutacin-associated gene from Streptococcus mutans. Infect Immun (1990) 1.04
The apparent importation of penicillin-resistant capsular type 14 Spanish/French clone of Streptococcus pneumoniae into Uruguay in the early 1990s. Microb Drug Resist (1998) 1.04
Unbalanced X chromosome mosaicism in B cells of mice with X-linked immunodeficiency. J Exp Med (1983) 1.04
Concentrations of antibodies in paired maternal and infant sera: relationship to IgG subclass. J Pediatr (1987) 1.04
Intrathecal transplantation of human neural stem cells overexpressing VEGF provide behavioral improvement, disease onset delay and survival extension in transgenic ALS mice. Gene Ther (2009) 1.04
Relation of age, race, and allotype to immunoglobulin subclass concentrations. Pediatr Res (1985) 1.02
A latex bead-based flow cytometric immunoassay capable of simultaneous typing of multiple pneumococcal serotypes (Multibead assay). Clin Diagn Lab Immunol (2000) 1.00
Human neural stem cells target and deliver therapeutic gene to experimental leptomeningeal medulloblastoma. Gene Ther (2007) 1.00