The CDC recommends that people aged 65 and older get another COVID-19 vaccine this season. The government agency says this second dose of the vaccine should be administered six months after patients at risk receive their first dose. Read: People 50 and older should get pneumococcal vaccine, U.S. health officials recommend

People ages 64 and older and those who are immunocompromised should get at least two doses of this year's COVID vaccine, the Centers for Disease Control and Prevention announced Wednesday. The CDC expanded its recommendation to account for the increased risk of severe COVID-19 in these populations.

Some Americans should get more than one shot of the updated COVID-19 vaccines because their age or certain health conditions make them more vulnerable to severe infections, U.S. health officials advised this week.