| Literature DB >> 749891 |
Abstract
The recent isolation of viscerotropic velogenic strains of Newcastle disease virus having a thermosensitive hemagglutinin and of a lentogenic strain with an unusually thermostable hemagglutinin confirmed that virulence for chickens was not related to the thermostability and could be used as a marker for strains in epizootiologic investigations.Entities:
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Year: 1978 PMID: 749891
Source DB: PubMed Journal: Avian Dis ISSN: 0005-2086 Impact factor: 1.577