The first confirmed case of H7N9 was confirmed yesterday in Baoji City, which is also the third case in the province. Some members of the public have asked, after finding this problem, live chickens dared to eat? In this regard, the provincial disease control center experts said that eating is no problem, but we try not to buy live poultry. In addition, the H7N9 virus can be inactivated by heating at 65°C for 30 minutes or at 100°C for 2 minutes or more. Shaanxi is not a high-risk area for H7N9 cases. People do not need to panic and should raise awareness of prevention.

Severe pneumonia occurs within 7 days of onset

The incubation period of H7N9 cases is generally more than 7 days or up to 10 days. Pneumonia is the main clinical manifestation, patients often have fever, cough, sputum, may be associated with headache, muscle aches, diarrhea or vomiting and other symptoms. Severe disease patients develop rapidly, with severe pneumonia occurring at 3 to 7 days after onset, and most of the body temperature persists above 39°C. Dyspnea may occur and may be associated with hemoptysis. Rapidly progresses to acute respiratory distress syndrome, septic shock and multiple organ dysfunction syndrome. A small number of patients may be mild and only show symptoms of fever with upper respiratory tract infections. There is no specific manifestation of early onset of H7N9 cases. Early diagnosis and early treatment are difficult. The severe cases in the later stage have poor therapeutic effect and high mortality. The overall case fatality rate of the currently reported cases is about 35%.

The reporter learned from the Provincial Center for Disease Control and Prevention that since the first case of human infection with H7N9 cases in East China in 2013, it has experienced seasonal epidemics in winter and spring every year, mainly in Jiangsu and Zhejiang and in the southeastern coastal areas. The province is the 24th province in the country where bird flu was found, and it does not belong to high-risk areas. According to the epidemic law of the past epidemics, the annual incidence of the disease after the Spring Festival will show a significant decline, and it will show a low level of prevalence until late April. At present, the rising trend of the epidemic has been curbed, and recent major epidemic provinces have adopted more stringent control measures for the live poultry business market and live-bird trade. It is believed that this will play a good role in controlling the further development of the epidemic.

There are currently no vaccines available to prevent the H7N9 virus infection. Seasonal flu vaccine does not prevent H7N9 flu, but seasonal flu vaccination can help reduce serious complications and hospitalization due to seasonal flu.

There is no clear evidence that the H7N9 virus can "pass human"

How does the H7N9 virus spread? The most important risk factor that causes human infection with the H7N9 virus is an environment that is directly or indirectly exposed to infected live poultry or infected poultry. At present, most cases of H7N9 diagnosed have live poultry exposure or exposure before the onset of disease, and the proportion of farmer's markets that are exposed to live poultry is high. The monitoring shows that the most recently reported cases of H7N9 are mainly retirees, housework and unemployed people, rural people, and middle-aged and elderly people; most cases have basic diseases; most of the cases had contact with live birds or have been There are markets where live poultry are sold; elderly people and people with underlying diseases are more likely to have severe illness and death after the onset of infection.

In addition, people who engage in non-scale and non-standardized poultry breeding, trafficking, slaughter, etc., have more exposure to infected poultry and are at higher risk of infection.

Provincial Disease Control Center experts said that the main route of H7N9 transmission is airway spread and close contact with the spread. There is no clear evidence that it has a continuous ability to pass people. However, within a certain range, a limited number of people can be achieved. If people have symptoms of some respiratory tract and symptoms of fever, they must wear masks. When they see a doctor, they must tell the doctor about some contact history between themselves and the birds.

Experts also reminded people to try not to live in the poultry market in their daily lives. In particular, they should not purchase live poultry from mobile stalls and live poultry, especially dead live poultry.

Poultry can eat but must eat safely

Many citizens are concerned that poultry cannot be eaten at the moment. In this regard, the provincial disease control center experts said that poultry is a good source of human food protein, cheap and good. Chickens, ducks and other poultry can certainly be bought or eaten, but they must be eaten safely. The H7N9 virus has a relatively weak resistance. It can be inactivated at 65°C for 30 minutes. After 100°C is boiled, it can be inactivated in two minutes.

In addition, care must be taken to avoid direct purchases of live birds, direct contact with live birds, and self-slaughter of live birds. It is necessary to try to buy and eat cold and fresh poultry, chilled poultry and their products with quarantine certificates. Especially in areas where the H7N9 outbreak has been found, do not buy live birds. Scientific analysis proves that concentrated cold-fresh poultry and chilled poultry slaughtered not only have the same nutritional value as slaughtered live poultry, but also can greatly reduce the risk of infections such as H7N9.

Secondly, live poultry must not be purchased from mobile vendors, nor should live poultry purchased from live poultry markets or mobile vendors be polycultured with their own domestic poultry. The survey found that in some areas that have already closed the main urban live poultry market, H7N9 cases have appeared in suburban junctions and rural areas in the near future. The vast majority are due to the purchase of live birds from mobile vendors or the mixing of foreign and domestic birds. After exposure, it causes an exposed infection.

At the same time, to remind the elderly population, especially those who have basic diseases such as chronic lung disease, diabetes, and coronary heart disease, and people with poor constitution, they should try to avoid or reduce contact with live poultry when buying poultry products. Go to live poultry environment.

Closing the market of live poultry in Xi'an, Xianyang, Xixian New District

It is reported that for the current situation of prevention and control of H7N9 epidemic, the Provincial Health Planning Commission requires fixed-point medical institutions at all levels to intensify clinical treatment training. In accordance with the principle of “concentrating patients, concentrating experts, concentrating resources, and centralized treatment”, the case treatment will be strengthened to minimize deaths. The occurrence of the case.

The Provincial Health and Development Commission requires all localities to strengthen joint prevention and control, and close coordination among different departments and regions to speed up the formation of a full-coverage prevention and control network that extends from the horizontal to the edge and vertical direction, with emphasis on the cooperation of the agricultural and market management departments on the live poultry market and The surrounding environment is subject to special inspections, and the live poultry market is strictly enforced and the disinfection system is implemented. Strengthen the urgency of responsibility for the prevention and control of the H7N9 epidemic, strengthen collaboration and collaboration, strengthen medical treatment, strengthen surveillance of the epidemic, strengthen supervision and inspection, and make every effort to prevent and control the epidemic. From May 5 onwards, it will shut down Xi’an and Xianyang. The urban live poultry market in Xixian New District has strict source control. At the same time, prevention and treatment of zoonotic diseases such as hand-foot-and-mouth disease and brucellosis, rabies, and the collection of TB epidemics in schools should be done.

The Provincial Health Planning Commission also invited Prof. Jianqi Jian and Professor Fan Shanhong of Tangdu Hospital of the Fourth Military Medical University to provide relevant technical specifications and policies for H7N9 treatment, hospitalization, prevention and control, etc., as well as medical treatment, nursing, quality control, and hospitalization for various medical institutions. The Sense and other subjects conducted special training.

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