ASSOCIATED PRESS -- Even people who have recovered from COVID-19 are urged to get vaccinated, and a new study shows survivors who ignored that advice had twice the risk of getting re-infected.
Friday's report from the Centers for Disease Control and Prevention comes as scientists urge everyone to get vaccinated as the extra-contagious delta variant spreads. That includes people who had a prior infection.
The report out of Kentucky adds to growing laboratory evidence that vaccines offer an important boost to natural immunity � including broader protection against new mutants.
