Updated distribution and host records for the argasid tick Ornithodoros (Pavlovskyella) zumpti: A potential vector of African swine fever virus in South Africa

Onderstepoort Journal of Veterinary Research

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Title Updated distribution and host records for the argasid tick Ornithodoros (Pavlovskyella) zumpti: A potential vector of African swine fever virus in South Africa
Creator Craig, Anthony F. Heath, Livio Crafford, Jan E. Richt, Juergen A. Swanepoel, Robert
Subject Veterinary Science; Transboundary Animal Disease African swine fever virus; sylvatic circulation; arbovirus; South Africa; extralimital warthogs
Description African swine fever virus (ASFV) causes a lethal and contagious disease of domestic pigs. In South Africa, the virus historically circulated in warthogs and ornithodorid ticks that were only found in warthog burrows in the north of the country. Regulations implemented in 1935 to prevent transfer of infected animals or products to the south initially proved effective but from 2016 there have been outbreaks of disease in the south that cannot be traced to transfer of infection from the north. From 1963 there were widespread translocations of warthogs to the south, initially from a source considered to be free of ornithodorid ticks. We undertook to determine whether sylvatic circulation of ASFV occurs in the south, including identification of potential new vectors, through testing extralimital warthogs for antibody and ticks for virus. Results of testing warthogs for antibody and other species of ticks for virus will be presented separately. Here we report finding Ornithodoros (Pavlovskyella) zumpti ticks in warthog burrows for the first time. This occurred in the Eastern Cape Province (ECP) in 2019. Since African swine fever was recognised in the ECP for the first time in 2020 and outbreaks of the disease in domestic pigs continue to occur there, priority should be given to determining the distribution range and vector potential of O. (P.) zumpti for ASFV.
Publisher AOSIS
Date 2021-12-09
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article —
Format text/html application/epub+zip text/xml application/pdf
Identifier 10.4102/ojvr.v88i1.1960
Source Onderstepoort Journal of Veterinary Research; Vol 88, No 1 (2021); 4 pages 2219-0635 0030-2465
Language eng
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Rights Copyright (c) 2021 Anthony F Craig, Livio Heath, Jan E Crafford, Juergen A Richt, Robert Swanepoel https://creativecommons.org/licenses/by-nd/4.0