Original Shanghai CDC Shanghai CDC
Recently, the Korea Disease Management Office said that "Norovirus is spreading particularly violently in South Korea, and the number of people infected in one week has reached a new high in the past five years. Uncooked fish and shellfish, contaminated vegetables and water are the main sources of infection". Seeing this news, I think there are many greetings in the hearts of eager friends who are returning home. What virus is this? What diseases are caused? Is it serious? How to prevent it?
To put it simply, we can take the strategy of "strategic contempt and tactical attention" to norovirus.
one
Understand the characteristics of the disease and strategically despise it.
Different from respiratory infectious diseases such as influenza, norovirus infection is an intestinal infectious disease, characterized by diarrhea, vomiting and other intestinal symptoms, with fecal-oral route as the main route of transmission. Main features:
one
It is seasonal and popular all year round, and the peak of incidence is in the cold season of autumn and winter.
2
There are many ways of transmission, which can be passed from person to person-inhaling aerosol produced by patients vomiting, touching patients’ feces or vomit, etc. It can also spread through food and water-ingestion of contaminated food or water, indirect contact with contaminated items and the environment, etc.
three
The course of the disease is short, and the symptoms last for 2-3 days on average. Symptoms such as fever, nausea, diarrhea, vomiting, headache, etc. can be seen. Diarrhea can reach 4-8 times within 24 hours, and the feces are mostly watery or watery.
four
It is a self-limited disease, and most of the symptoms are mild, so you can gradually recover after resting at home. A small number of infants, the elderly, people with low immunity and patients with basic diseases may have serious symptoms such as dehydration.
Although Norovirus has a short course of disease, mild symptoms and self-limitation, its attention is not low, because:
one
It is one of the main pathogens causing acute gastroenteritis, and monitoring in this city shows that norovirus accounts for more than one third of the pathogens detected in adult and child diarrhea cases.
2
The incubation period is short, and the virus can get sick in 24-48 hours after entering the human body.
three
The infection dose is low, and a small amount of virus can cause disease, which often causes cluster epidemics in collective units such as kindergartens, schools and nursing homes for the elderly.
two
Raise awareness of disease prevention and pay attention to tactics.
During the Spring Festival, family gatherings, visiting relatives and friends, taking crowded public transport, dining and eating seawater products may increase. It is suggested that everyone raise their awareness of disease prevention:
1. Strengthen the hygiene of drinking water, fully heat the food, and try not to eat cold and half-baked seafood and aquatic products.
2. Develop good personal hygiene habits and wash your hands before meals. When eating out, you can sit in a ventilated place by the window to keep the air circulating.
3. Reduce the time spent in crowded closed places, and those who have the conditions can wear masks for personal protection.
4. If you have symptoms such as vomiting and diarrhea, you should suspend gatherings, dinners and other activities, and see a doctor if necessary.
Contributed by Gong Xiaohuan and Xiao Wenjia
Draft review: Chen Jian
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Original title: "How to deal with this virus during the Spring Festival and on the way home? 》
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