(CNN) As the number of Covid-19 cases reported in the United States passed 18 million, the second vaccine given emergency authorization was being administered Monday for the first time outside of clinical trials. Dr. Anthony Fauci, Dr. Francis Collins, and Health and Human Services Secretary Alex Azar will be vaccinated against Covid-19 on Tuesday. Now travelers risk getting infected with a variant of coronavirus that might be even more contagious. Will the vaccines work against the new variant? Health officials are working to have enough doses for 20 million people distributed by the first week of January.

Source: The Nation December 22, 2020 02:03 UTC