Streptococcus infantis, Streptococcus mitis, and Streptococcus oralis Strains With Highly Similar cps5 Loci and Antigenic Relatedness to Serotype 5 Pneumococci

F Pimenta, RE Gertz Jr, SH Park, E Kim… - Frontiers in …, 2019 - frontiersin.org
Streptococcus pneumoniae is a highly impactful bacterial pathogen on a global scale. The
principal pneumococcal virulence factor and target of effective vaccines is its polysaccharide …

Nonpneumococcal strains recently recovered from carriage specimens and expressing capsular serotypes highly related or identical to pneumococcal serotypes 2, 4 …

RE Gertz Jr, FC Pimenta, S Chochua, S Larson… - MBio, 2021 - Am Soc Microbiol
The polysaccharide capsule is a key virulence factor of Streptococcus pneumoniae. There
are numerous epidemiologically important pneumococcal capsular serotypes, and recent …

Pneumococcal 23B molecular subtype identified using whole genome sequencing

G Kapatai, CL Sheppard, LJ Troxler… - Genome biology and …, 2017 - academic.oup.com
The polysaccharide capsule is a major virulence factor of Streptococcus pneumoniae and
the target of all currently licensed pneumococcal vaccines. At present, there are 92 …

A successful, diverse disease-associated lineage of nontypeable pneumococci that has lost the capsular biosynthesis locus

WP Hanage, T Kaijalainen, A Saukkoriipi… - Journal of clinical …, 2006 - Am Soc Microbiol
Streptococcus pneumoniae strains which fail to produce a polysaccharide capsule are
commonly isolated from carriage and disease contexts. Here we use a multilocus approach …

Streptococcus pneumoniae serotype 33G: genetic, serological, and structural analysis of a new capsule type

S Manna, JP Werren, BD Ortika, B Bellich… - Microbiology …, 2024 - Am Soc Microbiol
Streptococcus pneumoniae (the pneumococcus) is a human pathogen responsible for a
spectrum of diseases such as pneumonia, sepsis, and meningitis. The capsule is the major …

Non-pneumococcal mitis-group streptococci confound detection of pneumococcal capsular serotype-specific loci in upper respiratory tract

M da Gloria Carvalho, FC Pimenta, I Moura… - PeerJ, 2013 - peerj.com
We performed culture-based and PCR-based tests for pneumococcal identification and
serotyping from carriage specimens collected in rural and urban Kenya. Nasopharyngeal …

Pneumococcus with the “6E” cps Locus Produces Serotype 6B Capsular Polysaccharide

RL Burton, KA Geno, JS Saad… - Journal of clinical …, 2016 - Am Soc Microbiol
Genetic studies of serogroup 6 isolates of Streptococcus pneumoniae identified putative
serotype 6E. Although its capsular polysaccharide structure has not been elucidated …

Clinical streptococcal isolates, distinct from Streptococcus pneumoniae, but containing the β-glucosyltransferase tts gene and expressing serotype 37 capsular …

CL Sheppard, G Kapatai, K Broughton, U Schaefer… - PeerJ, 2017 - peerj.com
The major virulence factor of the pneumococcus, and target for conjugate vaccines, is the
polysaccharide capsule, which is usually encoded by the highly variable cps locus. Serotype …

Occurrence, Distribution, and Origins of Streptococcus pneumoniae Serotype 6C, a Recently Recognized Serotype

MR Jacobs, S Bajaksouzian, RA Bonomo… - Journal of clinical …, 2009 - Am Soc Microbiol
The prevalence of Streptococcus pneumoniae serotype 6C, a recently recognized serotype
that cross-reacts serologically with serotype 6A, was investigated. Isolates of serotype 6A in …

Evolution of the capsular gene locus of Streptococcus pneumoniae serogroup 6

PE Bratcher, IH Park, MB Oliver, M Hortal… - …, 2011 - microbiologyresearch.org
Streptococcus pneumoniae expressing serogroup 6 capsules frequently causes
pneumococcal infections and the evolutionary origins of the serogroup 6 strains have been …