See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The world was transformed by the emergence of SARS-CoV-2, the ...

Those who’ve dodged COVID-19 for more than four years may have a newly discovered immune response to thank. The results stem from a challenge trial: At the height of the pandemic in 2021, scientists ...

We conducted a phase 2–3 double-blind trial to assess the efficacy and safety of nirmatrelvir–ritonavir in asymptomatic, rapid antigen test–negative adults who had been exposed to a household contact ...

The pandemic inflicted higher rates of excess deaths on both Republicans and Democrats. But after COVID-19 vaccines arrived, Republican voters in Florida and Ohio died at a higher rate than their ...