KEY POINTS
  • The CDC is expanding its guidance for people at extreme risk of serious illness, like those over 60 or with underlying health conditions. 
  • Those over the age of 60 should start stocking up on enough groceries and medications to have on hand, the CDC said. 
  • Those at greatest risk of serious illness should stay home as much as possible if COVID-19 comes to their community, the CDC said. 

Many Americans will be exposed to COVID-19 over the next year or so with many people in the U.S. getting sick, a top CDC official said Monday, recommending that people over 60 and anyone with chronic medical conditions buckle down for a lengthy stay home. 

"This virus is capable of spreading easily and sustainably from person to person ... and there's essentially no immunity against this virus in the population," Dr. Nancy Messonnier, director of the CDC's National Center for Immunization and Respiratory Diseases, told reporters on a conference call, citing World Health Organization data that studied more than 70,000 cases in China.