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Appl Environ Microbiol. 1975 March; 29(3): 331-334
Copyright © 1975 American Society for Microbiology. All Rights Reserved.

Bacteriological Survey of Raw Beef Patties Produced at Establishments Under Federal Inspection

Microbiology Staff, Scientific Services, Animal and Plant Health Inspection Service, U.S. Department of Agriculture, Beltsville, Maryland 20705

ABSTRACT

At the time of manufacture, 76% of 74 sets of raw beef patties collected in 42 federally inspected establishments had aerobic plate counts of 1,000,000 or fewer/g; 84% contained 100 or fewer coliforms/g; 92% contained 100 or fewer Escherichia coli/g; and 85% contained 100 or fewer Staphylococcus aureus/g (geometric means of 10 patties/set). Salmonellae were isolated from only three (0.4%) of 735 beef patties.

¹ Statistical Services Staff, Washington, D.C.