Yersinia enterocolitica is a Gram-negative rod. It is non-motile and a non-spore former. It is facultatively anaerobic.

The most common manifestation of yersiniosis is acute gastroenteritis, although it can cause a wide range of clinical symptoms including arthritis, skin disorders and pharyngitis. Death from the illness is extremely rare. The incidence of yersiniosis appears to peak in the autumn and winter months.

Yersinia enterocolitica is ubiquitous and it is present in a wide range of animals - notably pigs. It is also found in the environment, including water, but most of these environmental strains are not pathogenic. Humans are another source of Yersinia enterocolitica and a food handler has been implicated in at least one outbreak of yersiniosis in the USA.

Milk and pork are commonly implicated in outbreaks of yersiniosis, especially in countries where the pork is eaten raw. Foods from which Yersinia enterocolitica have been isolated include milk and non-ripened/non-fermented dairy products, various meats, poultry, seafoods, vegetables, prepared foods and salads. However, most strains isolated are not those associated with human yersiniosis.

Yersinias are psychrotrophic organisms, capable of growth at low temperatures. Growth, albeit slow, has been recorded at temperatures of 0º to 2ºC . The optimum growth temperature of Yersinia enterocolitica is 30º to 37ºC.


xxx video xnxx