We know that the geographic origins of COVID-19 are in Wuhan, China -- but the precise cause and method of transmission aren’t known.
The U.S. intelligence community is looking into theories that the virus leaked from a laboratory in Wuhan. Meanwhile, the prevailing theory in the scientific community is that the virus was a result of natural spillover from bats to humans, either in a wet market or somewhere else.
We get the latest on the U.S. government’s investigations and dive into the scientific evidence for the prevailing origin theories.
Warren Strobel, reporter covering intelligence and national security for the Wall Street Journal; he tweets @wstrobel
Dennis Carroll, head of the Global Virome Project, a non-profit partnership that’s building a global atlas of viruses circulating in wildlife; he is the former director of the emerging threats division at the United States Agency for International Development (USAID)