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  • Title: Rapid detection of Salmonella microcolonies by fluorescent antibody.
    Author: Thomason BM.
    Journal: Appl Microbiol; 1971 Dec; 22(6):1064-9. PubMed ID: 4944805.
    Abstract:
    A microcolony fluorescent-antibody (FA) procedure for detecting salmonellae was compared to the usual direct FA procedure on 304 environmental, food, and feed samples. The microcolony FA test detected all of the specimens found positive by culture, whereas the direct FA missed 3.1% of them. Both FA tests revealed stained organisms in some of the culturally negative specimens. The microcolony FA test has several advantages over the direct FA test: ease of examining the smears, elimination of the fluorescent background material, and increased sensitivity.
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