Streptococcus pneumoniae prevalence in nasopharynx, oropharynx and gingival sulcus in Brazilian adults:A preliminary study

This study aimed to evaluate the prevalence of S. pneumoniae colonization in three different sites in healthy adults: nasopharynx, oropharynx and gingival sulcus. Two-hundred and sixty five adults, aged 20–60 years, who attended dental clinics in one public university (n = 106) and one military institution (n = 159) were enrolled in this study. Pneumococcal detection was performed by direct culture (DC) and PCR for lytA gene after a broth...