RESEARCH AND NEWS

Vials with COVID vaccines
A man blowing his nose
A cat looking out the window
A young man wearing a white mask in the dark
The hands of an old person
Imagen de una trombosis en una vena
A woman wearing a protective mask
A nurse with a vaccine in his hands
Wuhan
Covid
a hospital room with two beds
Coronavirus investigation
Vials with COVID vaccines
A doctor doing a PCR test to a patient
Scientists working in a lab