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).
The Risk. Certain foods â including ready-to-eat refrigerated foods, unpasteurized (raw) milk, and foods made with unpasteurized milk â often may be contaminated with Listeria monocytogenes (LM), the third leading cause of death from food poisoning.