Concussion in sport: Saliva test is 94% accurate in rugby union trial
Using pitchside saliva tests to diagnose concussion is a step closer after a "game-changing" trial in rugby union.
Author Archives: BBC News - Health
Covid: Deaths below average for first time since summer
The decline suggests the winter wave of coronavirus deaths has ended, experts say.
Coronavirus: How the common cold can boot out Covid
It looks like the viruses that causes colds wins in the battle to infect our cells.