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Serological Evidence of Exposure to Peste des Petits Ruminants in Small Ruminants in Rwanda

Shyaka, Anselme and Ugirabe, Marie Aurore and Johansson Wensman, Jonas (2021). Serological Evidence of Exposure to Peste des Petits Ruminants in Small Ruminants in Rwanda. Frontiers in Veterinary Science. 8 , 651978
[Research article]

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The status of Peste des Petits Ruminants (PPR) in Rwanda is unknown, despite its prevalence in neighboring countries. A cross-sectional sampling of goats and sheep was carried out in five districts of Rwanda located closer to neighboring countries endemic to PPR. Serum samples were analyzed using a commercial ELISA, to detect antibodies to PPR virus (PPRV). Sixty-eight samples [14.8, 95% Confidence Interval (CI): 11.7-18.4] were seropositive for PPR, of which 17.4% (95% CI: 11.6-24.6; 25/144) were from sheep, whereas 13.6% (95% CI: 10.0-17.9; 43/316) were from goats. Seropositivity ranged from 8.9 to 17.3% (goats) and from 10.5 to 25.8% (sheep) in sampled districts. Seropositivity was slightly higher in males than females in both goats (15.7 vs. 12.4%) and sheep (17.7 vs. 17.1%), and were significantly marked in goats and sheep aged more than 15 months (goats: 17.9, 95% CI: 12.9-24.0; sheep: 22.2, 95% CI: 14.1-32.2) than those between 6 and 15 months (goats: 6.1, 95% CI: 2.5-12.1; sheep: 9.3, 95% CI: 3.1-20.3). Sampling was non-randomized and results are not representative of the true prevalence of PPR antibody in small ruminants. Thus, data does not allow to fully discuss the findings beyond the presence/absence certitude and the comparisons made must be interpreted with caution. The presence of specific antibodies to PPRV may, however, be linked to one or a combination of following scenarios: (1) prevalence and persistence of PPRV in sampled regions which would cause low level of clinical cases and/or mortalities that go unnoticed; (2) introduction of PPRV to herds through movements of livestock from neighboring infected countries, and/or (3) events of disease outbreaks that are underreported by farmers and veterinarians. In addition to strengthen veterinary surveillance mechanisms, further studies using robust sampling methods and integrating livestock and wildlife, should be carried out to fully elucidate PPR epidemiology in Rwanda.

Authors/Creators:Shyaka, Anselme and Ugirabe, Marie Aurore and Johansson Wensman, Jonas
Title:Serological Evidence of Exposure to Peste des Petits Ruminants in Small Ruminants in Rwanda
Series Name/Journal:Frontiers in Veterinary Science
Year of publishing :2021
Article number:651978
Number of Pages:8
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 403 Veterinary Science > Clinical Science
Keywords:small ruminants, Rwanda, PPR, seroprevalence, transboundary diseases
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Additional ID:
Type of IDID
Web of Science (WoS)000629985500001
ID Code:23305
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Clinical Sciences
Deposited By: SLUpub Connector
Deposited On:19 Apr 2021 15:23
Metadata Last Modified:19 Apr 2021 15:31

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