ASSESSMENT OF MUTATION AND PREVENTION USING EGG MODELS, EFFICACY OF LA SOTA AGAINST VIRULENT NEWCASTLE DISEASE VIRUS AND CHARACTERIZATION OF NEWCASTLE DISEASE AND INFECTIOUS BRONCHITIS VIRUSES  

2021-06-26
Newcastle disease (ND) caused by virulent avian orthoavulavirus-1 (AOAV-1) in poultry occurs despite vaccination. In this study 100 chickens with respiratory distress between 2015- 2018 were screened by RT-qPCR for ...