Norovirus cases are spiking in the US. ... Medics first discovered noroviruses in 1972 using an electron microscope. ... Children under five as well as the weak and elderly are most vulnerable.

A cluster of norovirus virions under a CDC electron microscope. Photo: Charles D. Humphrey/CDC/AP Cases of a wretched stomach bug are surging in parts of the United States this winter, according ...

This electron microscope image provided by the Centers for Disease Control and Prevention shows a cluster of norovirus virions. Washing your hands for 20 seconds prevents contacting the Norovirus.

According to the CDC, an infected person can shed billions of norovirus particles that can only be seen under a microscope. It only takes a few particles to make people sick.

Lab tests consist of identifying norovirus under an electron microscope. A reverse transcriptase polymerase chain reaction test (RT-PCR assay) can also detect norovirus in food, water, stool ...

Norovirus is the leading cause of foodborne illness in the U.S., ... This electron microscope image provided by the Centers for Disease Control and Prevention shows a cluster of norovirus virions.

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 ...