In the context of an epidemic rebound in Beijing, and the origin of coronavirus in the new market has not yet been confirmed, the above-mentioned uncertain doubts is remaining and also become the attention of consumers at this stage.
(文中部分资料来源:海关总署官网、中国新闻网、路透社、国际畜牧网、WHO 官网、新浪财经、加拿大卫生部官网)