Viruses

Wastewater in several Californian cities, including San Francisco and Los Angeles, recently tested positive for bird flu. But understanding disease risk and exposure to humans isn’t so straightforward

Analysis of a strain of the virus circulating in Central Africa shows genetic mutations indicative of sustained human-to-human spread

If the influenza virus infecting cattle workers starts a pandemic, help in the form of a vaccine is months away

Rwanda’s health minister says authorities are tracing every potential contact of the index case in the country’s outbreak of Marburg virus disease to reduce the risk of wider spread

Infectious disease specialists explain whether vaccines will curb the mpox outbreak that was recently declared a global health emergency

From glacial ice cores extracted from the Tibetan Plateau, scientists recovered the equivalent of 1,705 viral species. Reading their genomes tells the story of 41,000 years of climate change

The Oropouche virus, which causes a disease nicknamed “sloth fever” for one of the animals that can be infected, has seen its first cases in the U.S.

A new type of mpox has infected thousands in the Democratic Republic of the Congo and other African countries, but vaccines and treatments are hard to come by

Foodborne illnesses such as E. coli, Salmonella, Listeria and Norovirus can make you seriously sick. Here’s how to protect yourself

Flash pasteurization destroyed H5N1 viral particles that were highly concentrated in raw milk, confirming that standard techniques can keep dairy products safe from bird flu

Amid the pandemic, the Pentagon ran a conspiracy campaign to discredit vaccines—just so it could score points against China. The revelation is a worst-case scenario for global public health

Scientists recently discovered giant viruses infecting algal blooms that dot the Greenland ice sheet