新冠溯源，美国到底是信政治，还是信科学？

and New York from January to March, 2021. Nearly 40 percent of them were found carrying SARS-CoV-2 antibodies. The study proves that white-tailed deer in these populations have been infected with the coronavirus on a large scale. The USDA claimed it didn't kno...

http://review.jschina.com.cn/meitiguandian/202108/t20210821_2839210.shtml