The sprinkler family of irrigation devices â used for about 15% of farm irrigation â is a bit better than flood irrigation in terms of efficiency, but thatâs not saying much. Bringing up the rear in terms of usage is drip irrigation, which is the method of choice for about 5% of farms.
The ready-to-eat cafeteria foods were also found to be contaminated with Escherichia coli, Staphylococcus aureus and Streptococcus faecalis at similar rates (Table 2). Up to half of the ready-to-eat foods were contaminated with two or more strains of these pathogenic bacteria (data not shown).
Salmonella. Salmonella bacteria (there are many types) are another major cause of food poisoning in the United States. The most commonly contaminated foods are raw meat (including chicken), raw or undercooked eggs, and unpasteurized milk.rticle Body. Food poisoning occurs after eating food contaminated by bacteria. The symptoms of food poisoning are basically the same as those of stomach flu: abdominal cramps, nausea, vomiting, diarrhea, and fever.