Genetic and Antigenic Diversity in Avian Infectious Bronchitis Virus Isolates of the 1940s
In order to verify a commonly held assumption that only Massachusetts (Mass) serotype of infectious bronchitis virus (IBV) was prevalent in the United States between the 1930s (when IBV was first isolated) and the 1950s (when the use of commercial IBV vaccines began), we examined 40 IBV field isolat...
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Veröffentlicht in: | Avian diseases 2002-04, Vol.46 (2), p.437-441 |
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Sprache: | eng |
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