Two studies showing high levels of Covid-19 infection among wild deer in the US have renewed concerns about the virus spreading through animal populations.
The findings, released this month, come as more reports of Covid in pets and captive animals are emerging. Lincoln Children’s Zoo in Nebraska lost three rare snow leopards to the disease earlier this month.
Though the Sars-Cov-2 virus causes few or no symptoms in most non-human animals, some scientists fear that wildlife might become a reservoir of infection — and possibly viral mutation — that could be transmitted back to people. It could also threaten endangered species.
您已阅读11%（632字），剩余89%（5089字）包含更多重要信息，订阅以继续探索完整内容，并享受更多专属服务。