Research Summary Nirmatrelvir for Vaccinated or Unvaccinated Adult Outpatients with Covid-19 Hammond J et al. DOI: 10.1056/NEJMoa2309003 Clinical Problem Effective oral treatments for Covid-19 are needed that can shorten the time to symptom resolution and reduce the risk of progression to severe illness. The oral antiviral nirmatrelvir, in combination with ritonavir, has been shown to […]