|
|||||
|
|
Presence of Virulent Newcastle Disease Virus in Vaccinated Chickens in Farms in Pakistan |
|
| Authors: | Shafqat Fatima Rehmani Abdul Wajid Tasra Bibi Bushra Nazir Nadia Mukhtar Abid Hussain Nazir Ahmad Lone Tahir Yaqub Claudio L. Afonso |
| Affiliation: | aQuality Operations Laboratory (QOL), University of Veterinary and Animal Sciences, Lahore, Pakistan;bInstitute of Biochemistry and Biotechnology (IBBt), University of Veterinary and Animal Sciences, Lahore, Pakistan;cPoultry Disease Diagnostic Lab, Gakkhar, Gujranwala, Punjab, Pakistan;dExotic and Emerging Avian Disease Research Unit, Southeast Poultry Research Laboratory, Agricultural Research Service, USDA, Athens, Georgia, USA |
| Abstract: | One year after a virulent Newcastle disease virus (vNDV) outbreak in Pakistan, the causative strain was present in vaccinated chickens of multiple farms despite the existence of high-average NDV-specific antibody titers (>4.75 log2). The data suggest a possible role of vaccinated birds as reservoirs of vNDV. |
| Keywords: | |