Long COVID is “devastating” the lives and livelihoods of tens of millions of people, and wreaking havoc on health systems and economies, WHO director general, Dr Tedros Adhanom Ghebreyesus has warned as he urged countries to launch “immediate” and...
A few years ago, researchers scoured the remains of 1867 people who lived between 30,000 and 150 years ago for genetic traces of variola, the virus that causes smallpox. In the teeth and bones of four Northern Europeans from...
