We investigated the initial adhesion in vitro of oral streptococci to porcelain inlays. Four strains of streptococci, Streptococcus mitis NCTC12261, Streptococcus oralis ATCC9811, Streptococcus sanguis ATCC10556 and Streptococcus sobrinus OMZ176, were used in this study. The disc specimens were made of porcelain, composite resin cement and human enamel. These specimens, with or without a saliva...

Streptococcus pseudopneumoniae (SPpn) is a relatively new species closely related to S. pneumoniae (SPn) and mitis (SM) belonging the Mitis group of genus (MGS). Although genes encoding various pneumococcal virulence factors have been observed in SPpn genome, pathogenicity against human, including roles factor candidates, still unclear. The present study focused on characterized candidate previ...

Fifty cases of puerperal sepsis in women from various hospitals in Faisalabad were included in the study. The frequency of various organisms was Escherichia coli 58%, Streptococcus Pyogenes 44%, Staphylococcus aureus 28%, Aerobacter aerogenes 14%, Streptococcus pneumoniae 12%, Staphylococcus epidermidis 10%, Streptococcus faecalis 8%, Candida albicans 6%, Streptococcus mitis (Viridans group) 6%...

Expression of a capsular polysaccharide is considered a hallmark of most invasive species of bacteria, including Streptococcus pneumoniae, in which the capsule is among the principal virulence factors and is the basis for successful vaccines. Consequently, it was previously assumed that capsule production distinguishes S. pneumoniae from closely related commensals of the mitis group streptococc...

Oral streptococci formerly classified as Streptococcus sanguis have been divided into six genetic groups. Methods to identify those species by genotype are needed. This study compared restriction fragment polymorphisms of rRNA genes (ribotypes) for seven S. gordonii, three S. sanguis, four S. oralis, three S. mitis, one S. crista, and seven S. parasanguis strains classified in previous DNA hybr...

The incidence of indifferent streptococci in the eyes of neonates less than 6 days old was investigated. The isolation of indifferent streptococci was significantly higher in infants with sticky eyes. Speciation using a shortened identification scheme was carried out on isolates; Streptococcus mitior and Streptococcus sanguis were the most common species in both purulent and non-infected eyes. ...

In group-living species, individuals often have preferred affiliative social partners, with whom ties or bonds can confer advantages that correspond with greater fitness. For example, in adult female baboons and juvenile horses, individuals with stronger or more social ties experience greater survival. We used detailed behavioral and life history records to explore the relationship between tie ...