Distribution of superantigens in group A streptococcal isolates from Salvador, Brazil

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Distribution of superantigens in group A streptococcal isolates from Salvador, Brazil

BACKGROUND Group A streptococcus (GAS) causes invasive disease, superficial disease, and can asymptomatically colonize humans. Superantigens are one virulence factor found in GAS. Previous studies found associations between the genes that encode superantigens and emm type of GAS. It is unknown if these associations are due to underlying biological factors that limit the distribution of superant...

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Rotavirus is a major cause of infectious diarrhea in infants and young children. The objective of this study was to characterize the genotypes of Human Rotavirus found in children hospitalized with acute diarrhea in the Pediatric Hospital Prof. Hosannah de Oliveira of the UFBA in Salvador, Bahia, Brazil, during the years of 1999, 2000 and 2002. Fecal samples were analyzed (n=358) by methods EIA...

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Group B Streptococcal Sepsis in a Newborn: a Case Report

Newborns’ bacterial infections due to group B Streptococcus (GBS) happen in two forms including early-onset disease or late-onset disease. In this paper, we report a case of early-onset GBS infection in a male infant. A 22-year-old primigravid woman delivers a term normal looking male infant. Nasal flaring, grunting, and poor feeding presented soon after birth. An empiric treatment wit...

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Phenotypic and genotypic characterization of group B streptococcal isolates in southern Brazil.

One-hundred sixty-eight group B streptococcal (GBS) isolates from a Brazilian hospital were phenotypically and genotypically characterized. Isolates were recovered from human sources from April 2006 to May 2008 and classified as either invasive, noninvasive, or colonizing isolates. Classical methods for serotyping and antibiotic resistance profiling were employed. Clonal groups were also define...

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An ecological study was conducted to describe the urban spatial distribution of mortality attributable to tuberculosis in Salvador, Bahia, Brazil in 1991, 1994, and 1997. The unit of analysis was the Health District (HD). The HD with the highest standardized rates was Sub rbio Ferrovi rio in 1991, 1994, and 1997, with 15.7, 10.6, and 10.6/100.000 inhabitants, respectively. Inequalities in morta...

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ژورنال

عنوان ژورنال: BMC Infectious Diseases

سال: 2014

ISSN: 1471-2334

DOI: 10.1186/1471-2334-14-294