Article
Molecular characteristics of Polish field strains of Marek's disease herpesvirus isolated from vaccinated chickens
14 Feb 2011
Abstract excerpt
BACKGROUND: Twenty-nine Marek's disease virus (MDV) strains were isolated during a 3 year period (2007-2010) from vaccinated and infected chicken flocks in Poland. These strains had caused severe clinical symptoms and lesions. In spite of proper vaccination with mono- or bivalent vaccines against Marek's disease (MD), the chickens developed symptoms of MD with paralysis.Because of this we decided to investigate...
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