Seasonality and risk factors for myxomatosis in pet rabbits in Great Britain

Farrell, Sean, Noble, PJ-M, Pinchbeck, Gina L ORCID: 0000-0002-5671-8623, Brant, Beth, Caravaggi, Anthony, Singleton, David A ORCID: 0000-0002-1980-5410 and Radford, Alan D ORCID: 0000-0002-4590-1334
(2020) Seasonality and risk factors for myxomatosis in pet rabbits in Great Britain. Preventive Veterinary Medicine, 176 (17). p. 104924.

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Myxomatosis is a highly contagious, frequently fatal viral disease affecting both wild and domesticated European rabbits across many areas of the world. Here we used electronic health records (EHRs) collected from pet rabbits attending a sentinel voluntary network of 191 veterinary practices across Great Britain (GB) between March 2014 and June 2019 to identify new features of this disease's epidemiology. From a total of 89,408 rabbit consultations, text mining verified by domain experts identified 207 (0.23 %) cases where myxomatosis was the only differential diagnosis recorded by the attending practitioner. Cases occurred in all months but February and were distributed across the country. Consistent with studies in wild rabbits, the majority of cases occurred between August and November. However, there was also evidence for considerable variation between years. A nested case control study identified important risk factors for myxomatosis within this pet animal population including season, sex, age, vaccination status and distance to likely wild rabbit habitats. Female entire rabbits were twice as likely to be a case (odds ratio (OR) 1.98, 95 % confidence interval (CI) 1.26-3.13, p = 0.003), suggesting a novel role for behaviour in driving transmission from wild to domesticated rabbits. Vaccination had the largest protective effect with vaccinated rabbits being 8.3 times less likely to be a case than unvaccinated rabbits (OR = 0.12, 95 % CI 0.06-0.21, p = <0.001).

Item Type: Article
Uncontrolled Keywords: Myxomatosis, Rabbit, Surveillance
Depositing User: Symplectic Admin
Date Deposited: 09 Mar 2020 09:37
Last Modified: 18 Jan 2023 23:58
DOI: 10.1016/j.prevetmed.2020.104924
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