You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen ...
There could be a combined Covid-19 and flu shot in our future, although it won’t be ready for this year’s flu season. On Monday, vaccine maker Moderna announced positive late-stage trial results for ...
Pfizer and BioNTech report that their updated mRNA COVID-19 vaccine for the 2025–2026 season produced strong immune responses, boosting neutralizing antibody levels by at least fourfold in older ...
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