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Memorias del Instituto de Investigaciones en Ciencias de la Salud

versão On-line ISSN 1812-9528


FARINA, N et al. Recto-vaginal carriage of group B beta hemolytic streptococcus in pregnant women of the Child Maternal Center Infantil and Hospital Santisima Trinidad. Mem. Inst. Investig. Cienc. Salud [online]. 2003, vol.2, n.1, pp.34-38. ISSN 1812-9528.

ABSTRACT The group B beta hemolytic streptococcus (SGB) is the main cause of severe neonatal infection in USA. The CDC developed a strategy to reduce morbidity and mortality of neonatal diseases associated to SGB recommending the culture of recto-vaginal samples of all women between 35th and 37th pregnancy weeks. In Paraguay, the search of this bacteria is not indicated routinely in all hospitals and there are not studies indicating SGB prevalence in pregnant women. It is important to identify SGB carriers and offer antibiotic prophylaxis to SGB carrier women during delivery as well as to those who develop delivery premature attacks or membrane breakage before 37th pregnancy week. The objective of this study was to determine the prevalence of recto-vaginal SGB carriage in pregnant women who attended two prenatal consultation services (Child Maternal Center and Hospital Santísima Trinidad). Samples were collected by vaginal and rectal swabbing and transported in Stuart medium to the Laboratory of Microbiology of the IICS for culture in agar- 5% sheep blood medium and incubation at 35°C in 7% of CO2 for 48 hs. SGB was identified by conventional methods and sensitivity to antimicrobials was determined by standardised guidelines of NCCLS. The prevalence of recto-vaginal carriage was 12% (15/121), distributed as follows: 17%(9/52) in the HT and 8% (6/69) in the CMC. The results were similar to those previously reported and could be higher if selective media recommended by CDC are used.

Palavras-chave : Streptococcus agalactiae ; group B beta hemolytic streptococcus; carriage -recto-vaginal -pregnant women.

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