Virus

They are uncomfortable, annoying and occasionally dangerous. But fevers are also an essential part of how we protect ourselves.

In July 2020, Britons enjoyed a brief respite from the isolation of Covid measures as pubs and bars opened again for business.

In June 2020, a popular British seaside town was swamped with beachgoers amid a global pandemic. One photographer captured the chaos.

Trillions of bacteria, fungi, viruses and single-celled organisms travel the globe high in the atmosphere. Scientists are finding that they play a role in the weather and our health.

Most of the world went into lockdowns in March 2020 response to the Covid-19 pandemic, but what has been the impact in those that didn't impose strict restrictions?

The winter vomiting bug is highly infectious and fast to evolve, but people who are unusually immune to the virus could help us beat it.

West Nile virus, Eastern equine encephalitis (EEE), malaria and dengue are gaining new ground in the US. The mosquitoes that carry these diseases are thriving in a warming world.

West Nile virus is spreading across the US and Europe. This deadly disease has been around for decades, but there is still no vaccine and no cure in humans.