Caracterização de Aeromonas spp isoladas de neonatos hospitalizados

Abstract

Aeromonas spp é reconhecida como patogênica para o homem após o consumo de água e alimentos contaminados. Na presente investigação, foram avaliadas 2.323 amostras de swabs retais de neonatos hospitalizados no Rio de Janeiro objetivando o isolamento de Aeromonas. As amostras foram coletadas e enviadas ao Laboratório de Referência Nacional de Cólera e outras enteroinfecções bacterianas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Os swabs foram submetidos ao enriquecimento em água peptonada alcalina adicionada de 1% de cloreto de sódio (NaCl) e água peptonada alcalina adicionada de 3% de NaCl (37ºC/18-24h) e semeadas em agar seletivo para Pseudomonas aeromonas (Agar GSP). Foram isoladas 56 cepas de Aeromonas assim distribuídas: Aeromonas caviae (42,8%), Aeromonas media (25%), Aeromonas veronii biogrupo sobria (10,7%), Aeromonas hydrophila (9%), Aeromonas veronii biogrupo veronii (5,3%), Aeromonas sobria (1,8%), Aeromonas jandaei (1,8%), Aeromonas schubertii (1,8%) e Aeromonas sp (1,8%). Foi observada resistência a uma ou mais drogas antimicrobianas em 26,8% das cepas. Considerando a relevância de Aeromonas torna-se urgente alertar sobre sua importância para o controle de infecções hospitalares.

Plesiomonasshigelloides and Aeromonadaceae family pathogens isolated from marine mammals of Southern and Southeastern Brazilian coast

“…The same Aeromonas species were isolated from an outbreak of diarrhea in Pernambuco, northeastern Brazil, as well as from patients with acute gastroenteritis in two hospitals at Rio Grande do Sul, southern Brazil (10,13). A similar study, Right eye Plesiomonas shigelloides (1) developed in three municipal hospitals at Rio de Janeiro city, southeastern Brazil, showed A. caviae and A. media associated to multiresistance antimicrobial profiles as the main pathogens isolated from newborns in the Intensive Care Unit (22). The real role of Aeromonas and P. shigelloides as pathogenic agents are unclear, but these microorganisms have been epidemiologically associated to acute diarrhea in human and in a diverse spectrum of diseases among both warm and coldblooded animals (14,27).…”

“…However, some of these bacteria are opportunistic and can have the ability to cause disease or death in debilitated or immunosupressed animals. Therefore, these pathogens are important to public health due to the capacity to cause disease in humans and animals, and their monitoring is considered as a relevant tool to prevent diseases (5,7,10,22,23).…”

“…These studies are important to Public Health due to the association between some of these microorganisms and the incidence of foodborne disease and extraintestinal infections (13,22,24).…”

A prospective study on Aeromonas in outpatients with diarrhea in the central region of Rio Grande do Sul State

“…Several microorganisms may be responsible for these infections, Aeromonas spp. is one of the notorious causative agent of diarrhea, as well as extraintestinal infections such as cellulitis, wound infections, sepsis, urinary tract infections, among others (6,13,14,17,18). The gastroenteritis caused by Aeromonas spp.…”

“…are widely distributed in nature, especially in aquatic environment (9), and are transmitted to humans mainly by water and food contaminated with the bacteria. In Brazil there are few studies on Aeromonas frequency in diarrheal diseases (6,7,11,14,15), and the bacteria is not searched in the routine of most of clinical laboratories.…”