AI Article Synopsis
- A study of 1,138 Salmonella strains from 28,199 samples in Ribeirão Preto, Brazil, between 1985 and 1999 found that S. I 4,5,12:i:- was the most common serotype (21.2%), followed by S. agona (15.8%) and S. enteritidis (11.3%).
- There was a notable shift in the prevalence of these serotypes over time, with S. agona decreasing from 27% in 1985-1989 to 4% in 1995-1999, while S. enteritidis rose significantly from below 1% to 32.3% in the same period.
- The study
Article Abstract
Salmonella strains isolated from 1,138 samples representing 28,199 biological materials (stool, urine, blood and other fluids), collected between January 1985 and January 1999 at a reference University Hospital in Ribeirão Preto, São Paulo, Brazil, were studied. The most frequently detected serotypes were Salmonella enterica subspecies enterica serotype 4,5,12:i:- (S. I 4,5,12:i:) (21.2%), S. agona (15.8%) and S. enteritidis (11.3%). A changing pattern of Salmonella serotypes was observed between 1985-1999. S. agona, which represented 27% of Salmonella serotypes isolated from 1985-1989, declined to 4% during the period from 1995 to 1999. S. enteritidis isolation remained below 1% until 1989; rose to 5.9% between 1990 and 1994, and increased to 32.3% between 1995-1999. S. I 4,5,12:i:-; S. enteritidis; S. typhimurium; S. dublin and S. infantis, showed low to moderate resistance profiles to most antimicrobial drugs. Nalidixic acid and tetracycline were the most and the least effective drugs, respectively, in the disk diffusion tests. We encountered changes in salmonellosis epidemiology in this geographical region.
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| http://dx.doi.org/10.1590/s1413-86702002000500005 | DOI Listing |
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