RESUMO
The prevalence of various pathotypes of Escherichia coli was investigated during a case-control study conducted in children diarrhoea in Yaounde. Isolates obtained from the stools samples of children aged 6 months to 5 years were selected on phenotypic basis; and identified by virulence genes detection using polymerase chain reactions. The most prevalent pathotype was enteroaggregative Escherichia coli (25.8). Enteropathogenic Escherichia coli (3.6); enterotoxigenic Escherichia coli (1); and enteroinvasive Escherichia coli (0.2) followed. No shiga toxin-producing Escherichia coli were identified. Enteroaggregative Escherichia coli was not associated with diarrhoea (cases 26.1; controls 25.5; P=0;887); unlike enteropathogenic Escherichia coli (cases 6.7; controls 1; P=0.003). Investigations into documented potentials of enteroaggregative Escherichia coli in causing diarrhoea and other related pathologies indicated that it could be a major public health threat in Cameroon despite the fact that it was not found associated with clinical diarrhoeal cases in this study
Assuntos
Epilepsia , Escherichia coli , Substâncias Perigosas , Saúde PúblicaRESUMO
Une etude a ete entreprise dans la Vallee du Mbam afin de mieux repartir l'onchocercose dans cette region. Dans chacun de ces villages; environ 150 sujets ages de cinq ans et plus ont ete examines du point de vue clinique et parasitologique. Il ressort de cette etude que tous ces villages etudies sont hyperendemiques. Cependant; les charges microfilariennes moyennes varient largement. Ainsi; cette enquete confirme qu'au Cameroun; en zone de transition savane-foret; l'onchocercose a des repercussions oculaires graves. Un traitement de masse par ivermectine serait certainement souhaitable dans la region de Bafia