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A total of 109 food products were surveyed for the incidence of beta-hemolytic streptococci. The organisms were isolated and enumerated using a pre-enrichment–Most Probable Number technique. Eighty seven isolates were obtained from 18 of 53 meat and fish products. No beta-hemolytic streptococci were isolated from the remainder of the samples which included vegetables, dairy products, dehydrated foods, and miscellaneous food items. Serological and biochemical procedures indicated 73 isolates belonged to groups C, D, F, B, L, A, and G, in order of frequency. Fourteen isolates remained ungrouped. The quantity of these organisms, as determined by the Most Probable Number (MPN) technique, ranged from 91 to &amp;gt;24,000 per 100 g of sample.

INCIDENCE AND IDENTIFICATION OF SOME BETA-HEMOLYTIC STREPTOCOCCI IN FOODS1