Our findings revealed multiple introductions of EIV probably from South America and Western Europe, rapid virus evolution, and significant transboundary spread facilitated by livestock trade, particularly involving donkeys and subclinical infections in the transmission of the virus. These results underscore the persistence and evolution of EIV H3N8 (Fc-1) in Nigeria and emphasize the need for improved genomic surveillance, control measures, and vaccination strategies against EIV in Africa. Additionally, regulating transboundary livestock trade is essential to mitigate the risk of future outbreaks.
Mkpuma et al. (Tue,) studied this question.