Medics first discovered noroviruses in 1972 using an electron microscope ... to be put under quarantine in Wiesbaden after 67 tourists fell ill, or roughly every second guest. A norovirus outbreak ...

because “you can shed billions of norovirus particles that you can’t see without a microscope,” the CDC says. “It only takes a few norovirus particles to make you and other people sick.” ...

This electron microscope image provided by the Centers for Disease Control and Prevention shows a cluster of norovirus virions ... the back of your hands, under your nails, anything that got ...

When a person is sick, they can shed billions of norovirus particles that can't be seen without a microscope. Maintaining proper hygiene, washing fruits and vegetables, cooking food thoroughly and ...

A new strain of norovirus may be circulating, potentially leaving fewer people with immunity, according to Lynn Roberts, an epidemiologist with the Wisconsin Department of Health Services.

Cases of the highly contagious norovirus are on the rise in the U.S. as the Centers for Disease Control and Prevention reported a significant jump in outbreaks in early December, according to the ...

But in 2025, it's norovirus. Cases of a wretched stomach bug are surging in parts of the United States this winter, according to government data. A norovirus infection is characterized by sudden ...