A few days ago, the “norovirus” on the hot search. Many local CDC reminded, norovirus into the high season, because it has a very strong contagious, often in schools, child care institutions, hospitals and other places to cause collective outbreaks, the CDC called on everyone to pay more attention to do a good job of prevention and control.
What kind of virus is norovirus? How can we prevent it?
What exactly is norovirus?
Norovirus, which belongs to the family Cupaviridae, is one of the common pathogens that cause acute gastroenteritis. Norovirus has the characteristics of low infectious dose, long detoxification time, and strong resistance in the external environment, which can easily cause gastroenteritis outbreaks in relatively closed environments such as schools and childcare institutions. Noroviruses are RNA viruses and are highly susceptible to mutation, with new mutant strains appearing every few years, causing global or regional outbreaks. People of all ages are generally susceptible to norovirus, and children, the elderly and immunodeficient people are at high risk.
What are the symptoms of norovirus infection?
Norovirus-induced infectious diarrhea has obvious seasonality, can occur throughout the year, the cold season shows a high incubation period, usually 1-2 days, the main symptoms are nausea, vomiting, stomach pain, abdominal pain, diarrhea, etc., the average duration of symptoms for 2-3 days.
Norovirus has strong infectivity and low infectious dose, 18-2800 virus particles can cause infection. And its virus epidemic strain of rapid mutation, every 2-3 years can appear to cause a global epidemic of new mutant strains.
How to treat norovirus infection?
At present, there is no specific treatment drugs for norovirus, norovirus infection treatment is mainly symptomatic or supportive treatment, most people can recover within a week, easy to dehydrate people such as young children, the elderly need to pay extra attention.
We need to strengthen lifestyle and epidemic prevention management, timely diagnosis, and good prevention work to deal with norovirus.
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