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).
For example, food poisoning following a hamburger lunch could be a result of the meat patty, contaminated lettuce or rancid mayonnaise. The CSPI reported that leafy greens, including spinach, lettuce and cabbage, were responsible for 363 outbreaks between 1990 and 2006 and caused 13,568 cases of illness.