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Revista Cubana de Salud Pública

versión impresa ISSN 0864-3466versión On-line ISSN 1561-3127

Resumen

MARTINO, Tamara K et al. Bacillus cereus and its involvement in food safety:: Part II. Rev Cubana Salud Pública [online]. 2010, vol.36, n.1, pp.139-148. ISSN 0864-3466.

Introduction Bacillus cereus causes diarrheal and emetic syndromes similar to those provoked by other foodborne pathogens. Objetives: To evaluate the presence of B. cereus in foodstuffs associated to outbreaks and to find out if it is the causative agent. Methods One hundred eight suspected food samples associated to 57 outbreaks were analyzed using ISO 7932:2004 and Cuban standard no. 38-02-12:1988. Also other microorganisms such as positive Staphylococci coagulase(Cuban standard ISO 6888-1:2003), Clostridium perfringens (Cuban standard 38-02-11:1988 and ISO 7937:2004) and Salmonella (ISO 6579:2002) as well as total coliforms (ISO 4832:2002), fecal coliforms and Escherichia coli (Cuban standard 38-02-14:1989). Results B. cereus was isolated in 22 food samples from 17 outbreaks. It was confirmed in more than one sample from the outbreaks no. 1, 7 and 10; it was isolated in recently prepared foods from the outbreaks number 4, 6 and 17; however in the outbreak number 10, it was only identified in the consumption place but not in the cooking place. Cl. perfringens was considered causative agent in outbreak number 1 and positive Staphylococci coagulase in the outbreaks no. 10 and 13, because of the levels of pathogens found and the epidemiology. B. cereus was defined as the responsible for 14 food-poisoning outbreaks; it was confirmed as causative agent in 10 and 4 outbreaks associated with the consumption of cooked rice in different ways and custard, respectively. Conclusions B. cereus was isolated in 20.4% of the analyzed samples, being more incidental in cooked rice courses and in custards. B. cereus was responsible for 24.6% of the analyzed food-poisoning outbreaks.

Palabras clave : Bacillus cereus; food-poisoning outbreaks.

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