At-home COVID-19 tests have become commonplace for many households, but knowing when exactly to take a rapid test — or when to throw old ones out — isn't always straightforward. Here's what health ...

Nigerian virologist Margaret Oluwatoyin Japhet has designed a rapid test that could diagnose rotavirus at a child’s bedside.

Unlike Covid-19, hantavirus cannot be detected using rapid antigen kits. Doctors explain why diagnosis depends on specialised ...