It takes less than 100 norovirus particles to make someone sick, and infected people can shed billions of viral particles in their vomit and poop, according to the CDC. As a result, “norovirus is ...
NEWYORK (AP) — Cases of a wretched stomach bug ... for Disease Control and Prevention show there were 91 outbreaks of norovirus reported during the week of Dec. 5, up from 69 outbreaks the ...