Prevalência e perfil de resistência a antimicrobianos de sorovares de Salmonella isolados de lingüiças suínas tipo frescal em Lages, SC / Prevalence and profile of resistance to antimicrobials of Salmonella serovars isolated from raw pork sausage in Lages, SC

The prevalence and profile of resistance to antimicrobials of Salmonella serovars isolated from raw pork sausage were studied in Lages county, Santa Catarina, Brazil. A total of 125 samples of 12 trademarks were collected in different commercial establishments. Salmonella sp. was present in 12.8 percent (16/125) of the samples and Typhimurium serovar was the most prevalent. Fourteen different antimicrobials were tested and most of the samples showed resistance to sulfonamide and tetracycline (81.2 percent). Eight positive samples (50 percent) were resistant at least to four antimicrobials, being considered as multi-resistant Salmonella. Seven (58.3 percent) trademarks were disagreement with the Brazilian law, representing a risk to the public health. The high level of resistance to the antimicrobials should produce a concern by the pig industry and veterinarians in order to prevent the transmission of resistant strains through the food chain.(AU)

Isolamento de Campylobacter jejuni em feto ovino abortado: relato de caso / Isolation of Campylobacter jejuni from ovine aborted fetus: case report

Relata-se o isolamento de Campylobacter jejuni de um feto ovino abortado no terço final da gestação. Em uma semana, observaram-se quatro casos de aborto em ovelhas com quatro meses de gestação. Imediatamente após o terceiro aborto, um dos fetos foi submetido a exame patológico, quando se realizou a colheita do conteúdo do abomaso para análise bacteriológica. À necropsia, somente foram evidenciadas alterações autolíticas. Apenas na microaerofilia encontrou-se crescimento bacteriano puro com características morfo-tintoriais de Campylobacter sp., identificado fenotípica e molecularmente como C. jejuni. Alerta-se para a possibilidade de quadros de abortos em ovinos serem causados por esse patógeno.(AU)

Campylobacter jejuni was isolated from aborted ovine fetus at the end of gestation. Three abortion cases within a week and another fourth case one month later were observed. Immediately after the third case, one fetus was submitted to necropsy and samples from abomasal content were collected for bacteriological analysis. At necropsy, only post-mortem and autolytic lesions were observed. Under microaerophilic conditions, a pure bacterial growth was obtained and identified by morphological and tintorial characteristics as Campylobacter sp., being the isolate confirmed as C. jejuni, by phenotypic and molecular assays. This is an alert for the possibility of this pathogen cause abortion in ovine.(AU)