detected zero cases of grapevine red blotch and grapevine leafroll associated virus-3 infections, after one positive result during annual testing last fall. “At this time there is no concern but we ...

"At the earliest signs of illness, we promptly enacted enhanced ... but a person can still transmit the notoriously contagious virus to others for two weeks or longer after their symptoms subside ...

One case of norovirus has been confirmed at the University of Guelph, in light of news about a stomach bug making at least 190 people sick, and raising questions about how the virus is spread ...

Many types of viruses start spreading rapidly in changing ... Norovirus is highly contagious, and there is no vaccine available yet to prevent it. But there are some things you can do to reduce ...