Adapted from Sivapalasingham, S., Friedman, C.R., Cohen, L., and Tauxe, R.V., J. Food Prot. 67, 10, 2004.

• Increased surveillance for human pathogens by public health agencies.

• Increased per capita consumption of fresh fruits and vegetables in North America.

• Increased awareness that produce may be a potential vehicle for human pathogens, thus leading to increased epidemiological investigations of produce as a potential vector.

• Increased global sourcing of produce items to ensure year around supply of the broad diversity of produce available in modern grocery stores.

• Longer postharvest storage and longer shipment times that may also contribute to increased potential for illness by allowing for proliferation of an initial low number of human pathogens to an infectious or disease-causing dosage.

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