Where did Covid-19 come from?

This is one of the central mysteries of the pandemic, and one that many research teams around the world are trying to solve. Experts believe that the virus initially came from bats and that it somehow developed the ability to infect humans and rapidly spread. Finding the first person to get infected with Covid-19 may be an impossible task. “No matter how good we are as scientists, we may never find it,” says one scientist. But putting together the puzzle of the outbreak will help experts better understand the virus and prevent future pandemics. Read the full story here.