A new Lancet review concludes that mRNA COVID-19 vaccines neither persist indefinitely in the body nor become part of our DNA ...

From the very early days of the pandemic, brain fog emerged as a significant health condition that many experienced after Covid-19. Brain fog is a colloquial term that describes a state of mental ...

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 ...

Simnotrelvir is an oral 3-chymotrypsin–like protease inhibitor that has been found to have in vitro activity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and potential efficacy ...

It’s a mysterious constellation of symptoms — brain fog, fatigue, heart palpitation, and others — that bind together those living with long Covid. It’s estimated 65 million or more people around the ...

This article and associated images are based on a poster originally authored by Cristina Alli, Chiara Soldati, Ottavia Cecchetti, Monica Bisbocci, Sara Pugliese, Mauro Cerretani, Elisa Beghetto, Marta ...