In light of Pope Francis’ latest diagnosis, Dr. Leana Wen explains why older adults are especially at risk for serious disease due to respiratory infections.

Study: Analysis of Lung Microbiome in COVID-19 Patients during Time of Hospitalization. Image Credit: crystal light / Shutterstock.com. Background. The primary infection site of SARS-CoV-2 is the ...

VATICAN CITY - Doctors have changed treatment for Pope Francis' respiratory tract infection to tackle a "complex clinical situation" and he will remain in hospital for as long as necessary, the ...