background and objectives: streptococcus pneumoniae is the most common cause of invasive infections among both young children and elderly people. common serotypes causing invasive diseases and the emergence of carriers of streptococcus pneumoniae in iran is not yet known. past-vaccine surveillance studies of serotype prevalence patterns in iran are necessary to monitor the epidemiology of strep...

Objective: To describe the entry of Dengue virus (DENV) serotypes in Brazil and its federative units. Methods: A systematic review studies published between 1980 2018 databases gray literature was performed using descriptors related to years DENV serotypes. Additionally, experts official sources information (Brazilian Ministry Health) were consulted. Results: From 100 publications selected for ...

background: klebseilla pneumoniae causes urinary tract infections, nosocomial pneumonia and intra-abdominal infections. capsular antigens are considered to be the ultimate virulence determinants. among 77 capsular serotypes of k. pneumoniae, serotypes k1 and k2 are the most virulent ones in humans. objectives: we designed a pcr method for detection of capsular serotypes k1 and k2 of k. pneumoni...

biotypes, serotypes and lysotypes of 38 yersinia isolated from 48 water samples were studied. these strains belonged to y.enterocolitica, y.frederiksenii, y.kristensenii and y. intermedia. except 23.7% of non-serotypable strains, ten different serotypes were isolated of which 0:6 and 0:10 kl were the most frequent. the serotypes 0:3, 0:8, 0:9 responsible for almost all registered cases of yersi...

background: the purpose of this study was to find out the frequency of different serotypes of enteropathogenic es­cherichia coli (epec) among healthy/diarrheal cases. methods: a total of 191 strains, 111 from diarrheal and 80 from asymptomatic persons were examined. determination of the epec sero­groups was performed by agglutination tests using polyvalent and monovalent o antiserum. pcr-rflp a...

Background: Identifying regional types and evaluating the frequency of pneumococcal strains has become increasingly important especially in vaccination. The purpose of this study was the identification and frequency determination of our regional serotype and evaluation of the performance of recent type specific multiplex PCR for the diagnosis of streptococcus pneumonia serotypes. Methods: All ...

Background: To date, more than 90 Streptococcus pneumoniae (S. pneumoniae) capsular serotypes are known. The prevalence of these serotypes varies according to the geographical area and the regional vaccination program. Due to the lack of regular vaccination programs for S. pneumoniae in developing countries, serotyping of the prevalent isolates is useful in selecting the correct vaccine. The pr...

Invasive Streptococcus suis (S. suis) infections in pigs are often associated with serotypes 2 and 9. Mucosal sites of healthy pigs can be colonized with these serotypes, often multiple serotypes per pig. To unravel the contribution of these serotypes in pathogenesis and epidemiology, simultaneous quantification of serotypes is needed. A quantitative real-time PCR (qPCR) targeting cps2J (seroty...