Previous COVID infections appear to provide less protection against omicron variant, study suggests

People line up outside of a free COVID-19 just-opened vaccination site in the Hubbard Place apartment building on Friday in Washington, D.C. (Samuel Corum/Getty Images/TNS)

A new study suggests that people who have already had COVID-19 appear to be less protected from being reinfected with the omicron variant than with previous variants.