South Africa is allowing the limited use of a medicine to treat COVID-19 even though regulators acknowledge there’s not enough evidence that it works or is […]
How does SARS-CoV-2 evade our immune defenses? It’s a good question, actually. When SARS-CoV-2 defeats host defenses, we need to know how it does so, and […]
Johnson & Johnson’s long-awaited vaccine appears to protect against COVID-19 with just one shot—not as strong as some two-shot rivals but still potentially helpful for a […]
An investigational COVID-19 vaccine developed by Janssen Pharmaceuticals appears to be safe and effective at preventing moderate and severe COVID-19 in adults, according to an interim […]