An experiment using smoke to simulate how aerosol infections work is seen in this photo provided by Aichi Prefectural University in Nagakute, Aichi Prefecture. TOKYO -- The new omicron variant of the ...

A large screen shows a news program reporting on the omicron variant of the coronavirus, in Osaka's Kita Ward on Dec. 8, 2021. (Mainichi/Maiko Umeda) TOKYO -- Seventy-three percent of respondents in a ...

BEIJING--Beijing’s first reported case of the Omicron variant has prompted stepped-up measures in the nation’s capital, just weeks before it hosts the Winter Olympic Games. Following the positive test ...

A new study analyzing the immune response to COVID-19 in a Catalan cohort of health workers sheds light on an important ...

While some have mild symptoms with COVID-19, others can have severe symptoms, resulting in hospitalization and even death.