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. 2020 Dec;31(4):539-548.
doi: 10.1007/s13337-020-00630-x. Epub 2020 Oct 16.

Towards eradication of peste des petits ruminants: post-vaccination evaluation in sheep and goats in Southern Peninsular India

V Balamurugan  1 , B Varghese  1 , D Muthuchelvan  2 , S SowjanyaKumari  1 , K Vinod Kumar  1 , R Dheeraj  1 , G Govindaraj  1 , K P Suresh  1 , D Hemadri  1 , P Roy  1
Affiliations

Towards eradication of peste des petits ruminants: post-vaccination evaluation in sheep and goats in Southern Peninsular India

V Balamurugan et al. Virusdisease. 2020 Dec.

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-χ2 = 218.8, p < 0.01; goats-χ2 = 827.1, p < 0.01), as all the states and UT adopted the PPR vaccination programme. The study also implies that the small ruminants in some of the epi-units (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; PPR; Post-vaccination; Seroprevalence; Sheep and goats; Southern Peninsular India.

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Conflict of interest statement

Conflict of interestThe authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
The surveyed epi-units (villages) location are depicted (as filled square a dot) in the GIS Map of the studied States/Union Territory in Southern Peninsular India
Fig. 2
Fig. 2
State-wise seroprevalence PPR in small ruminants in Southern Peninsular India
Fig. 3
Fig. 3
Distribution of epi-units based on percent positivity levels of PPR virus antibodies in the studied region
See this image and copyright information in PMC

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