No Experimental Evidence of Co-Feeding Transmission of African Swine Fever Virus between Ornithodoros Soft Ticks

Pathogens. 2020 Feb 28;9(3):168. doi: 10.3390/pathogens9030168.


Ornithodoros soft ticks are the only known vector and reservoir of the African swine fever virus, a major lethal infectious disease of Suidae. The co-feeding event for virus transmission and maintenance among soft tick populations has been poorly documented. We infected Ornithodorosmoubata, a known tick vector in Africa, with an African swine fever virus strain originated in Africa, to test its ability to infect O.moubata through co-feeding on domestic pigs. In our experimental conditions, tick-to-tick virus transmission through co-feeding failed, although pigs became infected through the infectious tick bite.

Keywords: African swine fever; Argasid tick; Ornithodoros moubata; co-feeding.