Tony Mazzulli, infectious diseases specialist at Toronto's Sinai Health, outbreaks typically occur in crowded settings such as schools, hospitals, childcare facilities, nursing homes, cruise ships and passenger trains. ![]() ![]() The typical route of transmission for norovirus is through infected bodily fluids and contaminants like saliva, vomit or, most commonly, fecal matter.Īccording to Dr. "It will remain on surfaces for some time, and can be resistant to heat, cold and even alcohol-based cleaning products." "Unfortunately, it doesn't take a large exposure to be infected with this, and the other interesting thing about norovirus is that it's actually rather hardy," Bogoch said. Most people will contract norovirus five times in their lifetime, according to the NCCID. ![]() Gastroenteritis is an inflammation of the stomach or intestines usually marked by vomiting and diarrhea, and norovirus is responsible for an estimated 685 million cases of acute gastroenteritis each year. HOW CONTAGIOUS IS NOROVIRUS AND HOW IS IT SPREAD?Īccording to the National Collaborating Centre for Infectious Diseases (NCCID), norovirus is highly contagious and has been the leading cause of acute gastroenteritis outbreaks around the world since 2002. There's social gatherings, people are back at work, kids are back at school, people are travelling, and many of the infections that decreased in frequency during 20 have started to re-emerge again." "But the world today appears to be very similar to pre-pandemic times.
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