How Transmission Can OccurAlthough people cannot get African swine fever, they can carry it on clothing, shoes, and equipment. Sources of the infection include garbage feeding, contaminated personnel, equipment and vehicles, contaminated feed, or water, infected domestic or wild pigs, soft ticks, stable flies and semen. The most common sources of transmission include:
Direct contact occurs when healthy pigs have contact with infected domestic or wild swine or come in contact with infected saliva, urine, feces, or aerosolized respiratory secretions via coughing or sneezing.
Indirect transmission happens when healthy pigs eat virus-contaminated feed, pork products, or come into contact with the virus on clothing, shoes, equipment, vehicles, or food waste.
This occurs when a soft tick acts as a vector, feeding on infected pigs and spreading the virus to healthy swine. Other insects like stable flies, leeches, and swine lice may also spread it.
Immediately report animals with any signs to state or federal animal health officials or call USDA for appropriate testing and investigation.
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