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 ...

ROME — Pope Francis’ respiratory tract infection is presenting a “complex clinical picture” that will require further hospitalization, the Vatican said Monday as concerns grew about the ...

Researchers use nanopore sequencing to determine the fungal and bacterial microbiota in the lungs of COVID-19 and non-COVID-19 patients.