Science Direct Topics

Researchers in the United States have conducted a study showing that the Moderna mRNA-1273 vaccine effectively protects against recently em...

Tenderness and swelling of the injection site and underarm glands. Side effects are more common and may be more pronounced after the second...

COVID-19 vaccines developed by Pfizer-BioNTech and Moderna reduced risk of infection by 80 per cent two weeks or more after the first of tw...