COVID-19

What it is

COVID-19 is the disease caused by SARS-CoV-2, now circulating as a seasonal respiratory virus with periodic variant waves. Current research focuses on long COVID, how long vaccine and infection immunity lasts, the virus's lingering effects on the heart and brain, and updated boosters. A steady share of coverage revisits vaccine safety through case reports and reanalyses, often from outlets with a point of view; large controlled studies remain the benchmark.

Written by the Alivewire editors from the coverage below, 3d ago. Not medical advice; how the ratings work.