Covid: Sewage sites to test for more traces of virus
The aim is to create an early warning system to detect local outbreaks before they spread.
Author Archives: BBC News - Health
Covid: Why is coronavirus so deadly?
Why does the biology of coronavirus mean it poses such a threat to human life?
Coronavirus: Inside Europe’s most infected area
Gavin Lee reports from the epicentre of the second wave of the Covid-19 pandemic, which is in Belgium.