LONDON – The EMA has requested all COVID-19 vaccine developers to investigate if their products offer protection against new variants of SARS-CoV-2 and to submit the relevant data.
LONDON – The first confirmed case of COVID-19 reinfection in the U.S. has been reported, with a patient testing positive for two distinct SARS-CoV-2 strains within 48 days, while testing negative in between contracting the two infections.