This virus has entered a period of high incidence of infection. How to prevent it？ Hainan CDC experts remind →

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　　Norovirus infection enters high season.

　　What are the symptoms of norovirus infection?

　　How to prevent it?

　　What should I do if I am infected?

　　October 9th.

　　Hainan province disease control center communicable disease prevention control office

　　Du Zhonghua, the chief physician, was interviewed by reporters.

　　Made an authoritative answer.

　　Du Zhonghua’s knowledge on prevention of Copnorovirus. Reporter Wang Hongxu photo

　　Hainan is from October to April every year.

　　Norovirus infectious diarrhea is high.

　　What is norovirus? Du Zhonghua said that Norovirus is an enterovirus, and it is one of the common pathogens that cause acute gastroenteritis in humans and many animals worldwide. Human infections are mainly G1 and G2, and infectious diarrhea caused by Norovirus in China is included in the management of other infectious diarrhea in Class C legal infectious diseases.

　　Among them, intestinal infectious diseases caused by norovirus can occur all year round, and autumn and winter are the high season for norovirus-infected diarrhea. The monitoring over the years shows that Hainan Province is prone to collective epidemic or outbreak from October to April of the following year.

　　Norovirus spreads through faeces.

　　The infectivity is the strongest during the illness period and within 3 days after rehabilitation.

　　How does Norovirus spread? What are the main high-risk groups?

　　Du Zhonghua said that Norovirus has a strong transmission power, mainly through the fecal route (that is, the disease enters the mouth), and it can also be spread through contact with contaminated items, water sources, aerosols formed by patients’ vomit, etc. Norovirus spreads quickly in closed places (such as kindergartens, kindergartens, schools, nursing homes, cruise ships, etc.), which is easy to cause outbreaks. Hainan province also needs to pay attention to public places (such as restaurants, scenic spots, chess rooms, swimming pools, etc.) where the floating population gathers, such as tour groups and "migratory birds".

　　"Norovirus people are generally susceptible." Du Zhonghua said that norovirus can be detected in feces from before onset to 2 weeks after rehabilitation, but the most infectious period is during the onset and within 3 days after rehabilitation. Norovirus is highly mutated, and new mutant strains will appear every few years. At present, there is no effective vaccine against Norovirus, and people can be infected many times in their lives.

　　Children and the elderly should seek medical attention in time for frequent vomiting and diarrhea.

　　What are the main symptoms of norovirus infection? Du Zhonghua said that the most common symptoms after Norovirus infection are diarrhea and vomiting, and may also be accompanied by nausea, abdominal pain, fever, headache, general aches and fatigue. The incubation period is generally 24-28 hours, with the shortest 12 hours and the longest 72 hours. Among them, children are mainly vomiting, while adults are mostly diarrhea. Norovirus infection usually manifests as a self-limited disease, and most patients can recover within 1-3 days after onset, with a good prognosis.

　　Du Zhonghua reminded that frequent vomiting or diarrhea can lead to dehydration, and young children, the elderly and patients with basic diseases should go to the hospital in time.

　　How should ordinary people prevent infection?

　　Du Zhonghua said that first of all, improve health literacy, pay attention to personal hygiene, form a good habit of washing hands frequently, do not share personal items such as cups and towels with others, and do personal protection in public places.

　　Secondly, eat direct edible foods such as fruits and wash them carefully before eating; Advocate eating cooked food and avoid eating cold and moldy food.

　　In addition, if the surrounding or family members are sick, the vomit and environment should be disinfected with chlorine-containing disinfectant in time, and the sheets and clothes should be cleaned and exposed to the sun, and meals should be divided within 3 days after the patient recovers.

　　How to scientifically prevent crowded places such as schools?

　　Du Zhonghua said that Norovirus spreads in many ways. First, schools should strengthen classroom ventilation and disinfect regularly; Second, teachers and students should do a good job of hand hygiene and wash their hands before and after meals; Third, do a good job in educating people about good eating habits and hygiene habits; Fourth, once there is an epidemic in a crowded place, it is necessary to immediately check whether food and water sources are polluted, and key areas such as canteens must be carefully inspected and sterilized to avoid further spread.

　　What should I do if I am infected with Norovirus?

　　Du Zhonghua said that if the symptoms are mild, they can be treated at home, drink light salt water or sugar salt water, adjust the water and electricity balance, pay attention to rest, and try to avoid going to public places during the illness and 3 days after recovery. Some young children or elderly people with basic diseases may have serious symptoms, so they should go to the hospital intestinal clinic for medical treatment in time.

　　Comprehensive: New Hainan Client, Nanhai Net and Southern Metropolis Daily.

　　Reporter: Wang Hongxu