TY - JOUR
T1 - Prevalence of Newcastle Disease Virus in Commercial and Backyard Poultry in Haryana, India
AU - Joshi, Vinay G.
AU - Chaudhary, Deepika
AU - Bansal, Nitish
AU - Singh, Renu
AU - Maan, Sushila
AU - Mahajan, Nand K.
AU - Ravishankar, Chintu
AU - Sahoo, Niranjana
AU - Mor, Sunil K.
AU - Radzio-Basu, Jessica
AU - Herzog, Catherine M.
AU - Kapur, Vivek
AU - Goel, Parveen
AU - Jindal, Naresh
AU - Goyal, Sagar M.
N1 - Publisher Copyright:
© Copyright © 2021 Joshi, Chaudhary, Bansal, Singh, Maan, Mahajan, Ravishankar, Sahoo, Mor, Radzio-Basu, Herzog, Kapur, Goel, Jindal and Goyal.
PY - 2021/11/4
Y1 - 2021/11/4
N2 - Newcastle disease virus (NDV) causes Newcastle disease (ND) in poultry. The ND is a highly contagious disease, which is endemic in several countries despite regular vaccination with live or killed vaccines. Studies on NDV in India are mostly targeted toward its detection and characterization from disease outbreaks. A surveillance study was undertaken to determine NDV prevalence throughout the state of Haryana from March 2018 to March 2020 using a stratified sampling scheme. The state was divided into three different zones and a total of 4,001 choanal swab samples were collected from backyard poultry, commercial broilers, and layers. These samples were tested for the M gene of NDV using real-time RT-PCR. Of the 4,001 samples tested, 392 were positive (9.8% apparent prevalence; 95% CI: 8.9–10.8%) for the M gene. Of these 392 M gene positive samples, 35 (8.9%; 95% CI: 6.4–12.3%) were found to be positive based on F gene real-time RT-PCR. Circulation of NDV in commercial and backyard poultry highlights the importance of surveillance studies even in apparently healthy flocks. The information generated in this study should contribute to better understanding of NDV epidemiology in India and may help formulate appropriate disease control strategies for commercial and backyard birds.
AB - Newcastle disease virus (NDV) causes Newcastle disease (ND) in poultry. The ND is a highly contagious disease, which is endemic in several countries despite regular vaccination with live or killed vaccines. Studies on NDV in India are mostly targeted toward its detection and characterization from disease outbreaks. A surveillance study was undertaken to determine NDV prevalence throughout the state of Haryana from March 2018 to March 2020 using a stratified sampling scheme. The state was divided into three different zones and a total of 4,001 choanal swab samples were collected from backyard poultry, commercial broilers, and layers. These samples were tested for the M gene of NDV using real-time RT-PCR. Of the 4,001 samples tested, 392 were positive (9.8% apparent prevalence; 95% CI: 8.9–10.8%) for the M gene. Of these 392 M gene positive samples, 35 (8.9%; 95% CI: 6.4–12.3%) were found to be positive based on F gene real-time RT-PCR. Circulation of NDV in commercial and backyard poultry highlights the importance of surveillance studies even in apparently healthy flocks. The information generated in this study should contribute to better understanding of NDV epidemiology in India and may help formulate appropriate disease control strategies for commercial and backyard birds.
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U2 - 10.3389/fvets.2021.725232
DO - 10.3389/fvets.2021.725232
M3 - Article
C2 - 34805330
AN - SCOPUS:85119454863
SN - 2297-1769
VL - 8
JO - Frontiers in Veterinary Science
JF - Frontiers in Veterinary Science
M1 - 725232
ER -