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H7N9 cited concern disease control experts authoritative answer

 

      Recently, H7N9 epidemic caused social concern. Reporters on the relevant issues interviewed the Chinese Center for Disease Control and Prevention Center for emergency response.
      What is the current situation?
      The number of cases decreased significantly
      Experts said that since last winter, China H7N9 case is indeed the 2013 H7N9 epidemic since the most. Overall, the basic characteristics of the epidemic did not change significantly, the case is highly distributed, human infection is mainly due to exposure to live poultry and live poultry market, although there are a few cases of clustered cases reported, but the number of cases of each gathering only 2 cases ~ 3 cases, there is no sustained human transmission phenomenon.
      Recently, the number of reported H7N9 cases has decreased significantly compared with the previous period. February 6 to 12, the national report H7N9 confirmed cases of 69 cases, and February 13 to 23 reported a total of 35 cases, the average daily reported cases decreased from about 10 cases to about 3 cases, indicating that the early prevention and control work Have achieved results. According to the law of previous years, in the future will continue for a period of time to maintain a lower level of the disease until the end of April, but because the current distribution of the epidemic is relatively wide, in order to prevent the recurrence of the epidemic, continue to continue to do all the prevention and control work The
      Why do you close the live poultry market?
      Control the epidemic to tackle the problem
      Experts said that in the high incidence of epidemic seasons and high incidence areas, close the live poultry market is effective to avoid contact with live poultry, reduce the crowd exposure and infection of the most important measures for reducing the incidence, control the peak, can play an immediate effect. Many epidemic areas have taken various forms of live poultry market management measures, such as permanent or temporary closure of live poultry market, regular suspension, seasonal rest and so on. In particular, since last winter, some cases reported earlier cases, such as Jiangsu, Suzhou, Wuxi, Changzhou, Anhui, Hefei, Wuhu and other cities, are decisive to take the live poultry market closed measures, the epidemic has been effectively controlled. Zhejiang Province for the end of last year, H7N9 cases in rural areas significantly increased the number of cases in the closure of the prefecture-level city of urban live poultry market, based on this year has taken further closure of the province's urban and rural live poultry market, suspended live poultry trade The measures.
      The National Health and Family Planning Commission, the Ministry of Agriculture, the State Administration for Industry and Commerce, the State Food and Drug Administration 4 ministries jointly asked the local, has been found H7N9 cases or live animal market detection of animal H7N9 pathogen positive city, should be implemented as soon as possible to close the main city Poultry market measures. Close the live poultry market for strict cleaning, disinfection. According to the test results, targeted to live in the local live poultry market poultry.
      At the same time, control H7N9 epidemic needs to tackle the problem, pay attention to long-term governance, that is, to accelerate the transformation and upgrading of poultry industry, and actively implement the "scale farming, centralized slaughter, cold chain transport, chilled listing" production and consumption of new models, Reduce contact with live poultry, prevent H7N9 virus infection in poultry and the spread between birds, thus blocking the H7N9 virus from poultry to human transmission.
      Is there a vaccine that can prevent
      Early detection and early treatment is the key
      Experts say that early use of antiviral drugs, such as neuraminidase inhibitor drugs, is effective in the treatment of H7N9 patients, but these antiviral drugs are best used within 48 hours after onset, will have a better effect. Therefore, early treatment, early access to antiviral treatment is very important.
      Experts advise, if there is fever, cough, fatigue, headache, joint muscle pain, general malaise and other symptoms, should wear a mask, as soon as possible to the hospital for treatment, and take the initiative to tell the doctor whether the disease before exposure to poultry and its secretions, , Whether it has been to live poultry market and so on, so that you can help doctors timely and accurate to make judgments, so as soon as possible targeted anti-viral drug treatment, reduce the development of severe cases as the opportunity to improve the treatment effect.
      Experts say there is no vaccine to prevent H7N9 virus infection, the relevant vaccine is being developed. At present, the human infection is mainly from the birds, the case is highly distributed, between people basically do not spread, and strive to reduce the contact between people and live birds, try not to be exposed to live poultry market or related environment, can effectively prevent H7N9 virus infection , There is no need to universal vaccination to prevent the incidence of infection. As for the seasonal influenza vaccine, mainly used to prevent seasonal influenza, vaccination of seasonal influenza vaccine can help reduce seasonal influenza caused by serious complications and the possibility of hospitalization, but this can not prevent H7N9 flu.
      Is virus mutation awesome?
      No increase in human infection
      One of the important characteristics of influenza virus is the possibility of mutation. Experts say two strains of virus mutants have been isolated from two cases of H7N9 infection in Guangdong province, and the virus has a gene insertion mutation in the hemagglutinin linker peptide position. China CDC organizes expert judgment and communicates with relevant experts in the agricultural sector that H7N9 virus in the hemagglutinin link peptide position of this gene insertion mutation, suggesting that the virus from the original non-pathogenic virus mutation The virus is highly pathogenic to the virus; at the same time according to the results of the virus sequence analysis, the virus has not yet appeared on the human infection, virulence and interpersonal ability to enhance the mutation. So the current prevention and control of human infection will not have much impact.
      It is reported that the agricultural sector from Guangdong poultry to detect similar high pathogenic mutant strains. There is no high-pathogenic mutant virus detected by H7N9 from human infection cases or birds from outside of Guangdong. Health care and agriculture departments are further strengthening the virus monitoring and testing work, and strive to identify the source of the mutant, the scope of impact and the overall impact of H7N9 prevention and control work, and will take targeted measures to minimize its impact The
Eat chicken, chicken feet will be infected?
      Toe the wind Mo letter
      Recently, there are rumors online, "the public eat chicken chicken infected with avian flu death" "Pickle chicken feet contain a large number of avian influenza virus" "fish, Liangpi, sauerkraut will spread H7N9". Experts say these are rumors. Live birds or live poultry market exposure history is the most common way of infection with H7N9 virus, Chicken Chicken and Pickle Chicken are cooked chicken or chicken processing of non-staple food, consumption of such food will not lead to infection with avian flu. Because the H7N9 virus is not heat, to 70 degrees Celsius, that is, "hot", the poultry meat is no longer any part of the red, the virus was killed. "Chicken Chicken" "Pickle Chicken Claw" are treated by cooking, can not contain a large number of avian influenza virus, but will not lead to human infection.
      In addition, there is no evidence that H7N9 virus can infect fish, Liangpi, cold noodles, sauerkraut and H7N9 virus infection is nothing to do, so it will not fish, Liangpi, sauerkraut such food to spread H7N9 virus.
It should be emphasized that in the food preparation process, we must pay attention to raw and cooked separately, including processing, preparation, in full bloom and cooked food involved in cutting tools, cutting boards, containers, etc. must be strictly separated to prevent cross-contamination occurs, this is Food processing common sense and the most basic requirements.
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