Salmonella

Salmonella is a genus of rod-shaped Gram-negative enterobacteria that causes typhoid fever, paratyphoid and food poisoning. Samsung Omnia 7 extended battery

Disease-causing salmonellae have recently been re-classified into a single species, Salmonella enterica, which has numerous strains or serovars. Salmonella typhi is a well know serovar that causes typhoid fever. Other salmonellae are frequent causes of food poisoning, and can especially be caught from poultry. In the mid to late 20th century, Salmonella enterica serovar Enteritidis was a common contaminant of eggs. This is much less common now with the advent of hygiene measures in egg production and the vaccination of laying hens to prevent samonella colonization. Many different salmonella serovars also cause severe diseases in animals other than human beings.

Symptoms
Symptoms are usually gastro-intestinal and can include nausea, vomiting, diarrhea. These symptoms can be severe especially in the old and very young. Symptoms last generally up to a week, and can appear around 24 hours after ingestion of the bacterium.

The bacterium induces responses in the animal that it is infecting and this is probably what causes the symptoms rather than any direct toxin.


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