For more than two months, the city of Wuhan, China, was sealed off from the outside world. Flights in and out were canceled. Train and bus routes were suspended. Highway entrances were blocked.

Stock markets plunged on Friday after scientists in Wuhan, China, published a report warning of a new version of Covid-19. While many stocks dipped, Moderna and Pfizer's shares saw a boost.

China Says Wuhan Institute Was Not Involved in Creating COVID-19 Virus BEIJING (Reuters) - The Wuhan Institute of Virology was not involved in the creation or leakage of the COVID-19 virus ...