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History, Morphology, and Biochemical and Antigenic Properties of Salmonella typhimurium, Strain P-10

1968; American Association of Avian Pathologists; Volume: 12; Issue: 3 Linguagem: Inglês

10.2307/1588166

1938-4351

James E. Williams,

Veterinary medicine and infectious diseases

The macroscopic tube agglutination test for Salmonella typhimurium infection has been used since 1967 in classifying turkey flocks as U. S. Typhimurium Controlled under the National Turkey Improvement Plan (NTIP) (2). The test is also used in testing chicken flocks, but there exists no official classification for such tested flocks under the National Poultry Improvement Plan (NPIP) (2). Official use of blood testing for turkey breeding flocks to supplement other methods of S. typhimurium control came about as a result of recommendations of the Committee on Salmonellosis and Related Enteric Diseases of the NPIP-NTIP, approved at the June 1958 National Plans Conference in Louisville, Kentucky. The tube agglutination test had previously been used to test not only chickens and turkeys but occasionally other avian species, as has been reviewed elsewhere (11). Although the recommendations made at the 1958 Conference, and published first in the 1959 edition of the INPPIP-NTIP (1), covered both somatic (0) and flagellar (H) antigens for use in typhimurium tube agglutination testing, only the somatic type antigen is presently produced and used in official testing. In the United States a single strain of S. typhimurium, designated P-10, is presently recommended for use in preparing the antigen. This strain is nonmotile, possesses no detectable flagellar antigens, grows well on artificial media, possesses satisfactory antigenic stability, and is not sensitive to negative sera. Yamamoto et al. (12) and Smyser et al. (10) respectively reported on use of the culture for producing tube agglutination antigen to test turkeys and chickens. In view of the widespread use of strain P-10 in serological testing for S. typhimurium infection in avian species in the United