Water in the country’s drains can pick up a spike in Covid-19 cases or a threatening new variant in time for clinics to prepare for an influx of patients
The World Health Organisation has enlisted a team of South African researchers to produce a new mRNA Covid-19 vaccine, but with no recipe to follow, it’s not an easy task
Two kinds of virus, one biological and the other digital, have spread around the world, changing society and creating social elites