Scientists have learned more about how SARS-CoV-2 infections, which cause COVID-19, can ruin the ability of immune cells to ...

Chinese authorities declared that Covid-19 had naturally transmitted from animal to human at a wildlife market in Wuhan.

A 45-year-old woman in Kolkata has been diagnosed with human coronavirus HKU1 (HCoV-HKU1), a respiratory virus that can cause ...