Key result
Pig auctions, swill feeding, and scavenging are linked to African swine fever spread.
Why the study?
Two main epidemics of African swine fever occurred outside the South African ASF-controlled area, associated with domestic transmission cycles, requiring investigation of spread mechanisms.
Observational (n=4,428)
African swine fever outbreaks in South Africa outside controlled areas were driven by domestic cycle transmission via auctions, swill feeding, and scavenging, highlighting the need for targeted biosecurity measures.
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May inform ASF surveillance in South Africa; leaves open the role of sylvatic spillover in recent epidemics.
Rametse et al. (2020) conducted an observational in African swine fever (n=4,428). Auctions, swill feeding, and scavenging was evaluated on Spread of African swine fever. The spread of African swine fever in the 2012 and 2016-2017 epidemics outside South Africa's controlled areas was mainly driven by the trade of pigs at auctions, swill feeding, and scavenging.
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