Five years after the start of the coronavirus pandemic, COVID is usually discussed in the past tense — as a thing that happened. But no event as monumental as COVID simply goes away. The disease forced us to rearrange our society nearly overnight.

Five years ago, James Yu's life in San Diego was a seamless blend of work and social outings with his colleagues. "We worked out together, grabbed dinner together, met up after work [for] craft beers together," he says. All of that was upended by the COVID ...

The hantavirus outbreak has got the world worried. With five confirmed cases on board the MV Hondius, people are drawing comparisons to the 2020 coronavirus pandemic. But the two infections are very different.

Unlike Covid-19, hantavirus cannot be detected using rapid antigen kits. Doctors explain why diagnosis depends on specialised blood tests, PCR analysis and clinical suspicion, especially during severe respiratory illness outbreaks.

I am often asked by those concerned about the future what keeps me up at night. While nuclear war concerns me every single day, it's the threat of bioterrorism that leaves me sleepless. Warheads can be tracked and intercepted, but pathogens can spread ...

An outbreak aboard a cruise ship of a rare rodent-borne illness has left three passengers dead and sickened others, but global health officials say the risk to the general public remains low because the germ does not easily spread between people.