Beijing has never fully co-operated with international investigators, impeding the search for a definitive answer. But ...

Five years on from the start of the pandemic, Donald Trump’s new CIA director has weighed into the contentious debate saying a lab leak was “most likely”.

The first discoveries of people infected with the COVID-19 virus were in Wuhan. Five years after the initial lockdown was ...

Heavy weed use appears to dull the brains of young adults, particularly affecting their short-term working memory, a new study suggests.