Species and serovars of enteropathogenic agents associated with acute diarrheal disease in Rosario, Argentina

Revista do Instituto de Medicina Tropical de São Paulo

Rodolfo Notario²  Noemi Borda¹  Telma Gambande¹  Emma Sutich¹ 

[1] ,Universidad Nacional de Rosario Facultad de Ciencias Médicas

关键词: Acute diarrhea;    Enteropathogenic agents-species;    Serovars;    Rosario;    Argentina;   

DOI  :  10.1590/S0036-46651996000100002

来源: SciELO

【 摘 要 】

We report the most frequent species and serovars of enteropathogenic organisms in Rosario from 1985 to 1993. Enteropathogenic Escherichia coli was the most prevalent agent affecting 144/570 (25.2%) children; 0111 represented 41.8%, 055: 13.6%, 0119: 12.7%. Among enterotoxigenic E. coli (ETEC) the most frequent were ETEC-ST 0128:H21 and 0153:H45. Shigella spp were isolated in 8.8%; S.flexneri: 7%, principally type 2 (59.5%); S. sonnei: 1.6%, and S. dysenteriae type 2: 0.2%. Campylobacter spp were found in 6.1% of patients; C.jejuni: 4.6%; C. coli: 1.4% and C. lari: 0.2%; except groups 0 13,50 and 0 4 (2 cases each), no predominant serogroups were found. Salmonella was isolated in 2.8% of cases, being the predominant serovar S. typhimurium until 1986, but a dramatically increase of cases due to S. enteritidis was observed since 1987. There was 1.9% of Aeromonas spp and 2 cases due to Vibrio cholerae non 0-1. No Yersinia was found. In patients with gastroenteritis due to Shigella, Campylobacter, Salmonella, or EPEC as the unique pathogen, leukocytes were observed in the faeces in 70%, 50%, 20%, and 10% of cases respectively.

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