| comparative analysis of oncogenic genes revealed unique evolutionary features of field marek's disease virus prevalent in recent years in china. | marek's disease (md) is an economically important viral disease of chickens caused by marek's disease virus (mdv), an oncogenic herpesvirus. this disease was well controlled since the widespread use of commercial vaccines, but field mdvs have shown continuous increasing in virulence and acquired the ability to overcome the immune response induced by vaccines. nowadays, md continues to be a serious threat to poultry industry, isolation and characterization of mdvs are essential for monitoring cha ... | 2011 | 21406076 |