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  • Title: Identification of avian strains of Pasteurella multocida in India by conventional and PCR assays.
    Author: Shivachandra SB, Kumar AA, Gautam R, Singh VP, Saxena MK, Srivastava SK.
    Journal: Vet J; 2006 Nov; 172(3):561-4. PubMed ID: 15994103.
    Abstract:
    The prevalence of capsular and somatic serotypes were studied among 123 Pasteurella multocida strains isolated from chickens (n=94), ducks (22), quails (4), turkeys (2) and geese (1) from different geographical regions of India. All strains exhibited similar cultural and morphological characteristics. Ninety-two of the isolates belonged to serotype A:1, the most prevalent serotype, with serotypes A:3, A:1,3, D:3 and F:3 having two isolates each. Only one isolate was positive for serotypes A:4 and D:1. Twenty isolates were untyped. A multiplex capsular PCR assay generated amplicons of sizes approximately 460, approximately 1044, approximately 657 and approximately 854 bp in 106 isolates identified as capsular serotype-A, 15 in serotype D and two in serotype F. Capsular types B and E were not detected in any of the avian isolates studied. The present findings suggest that a multiplex capsular PCR assay may be suitable for the rapid initial identification serotypes P. multocida during epidemiological studies of fowl cholera.
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