Towards eradication of peste des petits ruminants: post-vaccination evaluation in sheep and goats in Southern Peninsular
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ORIGINAL ARTICLE
Towards eradication of peste des petits ruminants: postvaccination evaluation in sheep and goats in Southern Peninsular India V. Balamurugan1 • B. Varghese1 • D. Muthuchelvan2 • S. SowjanyaKumari1 • K. Vinod Kumar1 • R. Dheeraj1 • G. Govindaraj1 • K. P. Suresh1 • D. Hemadri1 P. Roy1
•
Received: 17 March 2020 / Accepted: 12 September 2020 Indian Virological Society 2020
Abstract The cross-sectional seroprevalence study of the peste des petits ruminants (PPR) in sheep and goats was carried out in the Southern Peninsular region of India to ascertain the prevalence of PPR virus (PPRV) antibodies at the epidemiological units (epi-units) level in the small ruminant population. The serum samples were collected from various epi-units (villages) in the different states and union territory (UT) in Southern Peninsular region using a stratified random sampling methodology from August 2017 to March 2018. A total of 6643 serum samples [sheep (n = 2785) and goats (n = 3858)] were collected from 360 epi-units and were screened by PPR competitive ELISA kit for the detection of PPRV antibodies. The results revealed that the seroprevalence of PPR in small ruminants in Telangana, Andhra Pradesh, Karnataka, Tamil Nadu, and Kerala states, and Puducherry UT was 87.0%, 66.4%, 64.3%, 47.8%, 11.4%, and 50.4%, respectively in the studied region. Further, the results of the chi-squared test revealed that the PPRV antibodies across different states and UT in the region were associated (sheep-v2 = 218.8, p \ 0.01; goats-v2 = 827.1, p \ 0.01), as all the states and UT adopted the PPR vaccination programme. The study
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s13337-020-00630-x) contains supplementary material, which is available to authorized users. & V. Balamurugan [email protected]; [email protected] 1
Indian Council of Agricultural Research-National Institute of Veterinary Epidemiology and Disease Informatics (ICARNIVEDI), Post Box No. 6450, Yelahanka, Bengaluru, Karnataka 560 064, India
2
Division of Virology, ICAR-Indian Veterinary Research Institute, Campus Mukteswar, Nainital, Uttarakhand, India
also implies that the small ruminants in some of the epiunits (n = 102) had \ 30% seroprevalence, which necessitates comprehensive intensive vaccination and active surveillance programmes to make this region as PPR free zone. Keywords Cross-sectional study Post-vaccination PPR Seroprevalence Sheep and goats Southern Peninsular India
Introduction Peste des petits ruminants (PPR) otherwise known as ‘Goat Plague’, is a contagious economically important and a world organization for animal health (OIE) notifiable transboundary viral disease of domestic (sheep and goats) and wildlife small ruminants. The disease is caused by the small ruminant morbillivirus (SRMV) (formerly known as PPR virus-PPRV), a member of the genus Morbillivirus of the family Paramyxoviridae (http://ictvonline.org/vir usTaxonomy.asp). Clinically, PPR is characterized by high feve
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