A small study finds that people showed a robust immune response that targets the spike protein, after receiving either the Pfizer-BioNTech or the Moderna vaccine.Mutations associated with the new variants first found in the United…

COVID-19 and the heart: What do we know…
SARS-CoV-2, the virus that causes COVID-19, affects various organs and systems in the body, including the cardiovascular system. What do we currently know about its impact on the heart? This feature looks at the latest…