Vaccines have gotten all the attention in the race to fight Covid-19, but there is a major push in the U.S. to develop antibody therapies to treat coronavirus. So much so that some scientists think antibody treatments may be available this year, even before a vaccine. During the 1918 flu pandemic, doctors proved convalescent plasma — antibody-filled blood plasma from patients who recovered from the disease — could fight flu. Convalescent plasma has been used to treat severe flu, MERS and SARS and now some US doctors are starting to see some success treating Covid-19, too. Learn More