At present, China is in the season of high incidence of h7n9. Since this year, human cases of h7n9 influenza have been found in 16 provinces, including Fujian, Yunnan and Hunan, with a significant increase compared with the same period last year.
Why has the recent h7n9 epidemic increased significantly? Can you still eat chicken, duck and other poultry during h7n9?
According to the data on the official website of the national health and Family Planning Commission, in January 2014, the number of human cases and deaths of h7n9 avian influenza were 127 and 31 respectively.
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What are the symptoms of h7n9 avian influenza? How does h7n9 avian influenza spread? H7n9 exposure
Because h7n9 cases have no specific manifestations in the early stage, which is similar to the common cold. In the later stage, the treatment effect of severe cases is poor and the mortality rate is high. At present, the overall mortality rate of reported cases is about 40%. It is very important to understand h7n9 symptoms.
People infected with h7n9 avian influenza can't get rid of the high fever according to the common cold treatment; other symptoms of upper respiratory tract are not obvious (runny nose, sneezing, etc.); cough is obvious, but the sputum is small, and the condition changes rapidly without timely treatment. In 5-7 days, dyspnea will occur, and even severe pneumonia will occur.
In January 2015, the number of cases and deaths of h7n9 avian influenza in China was 83 and 38 respectively; in January 2016, the number of cases and deaths of h7n9 avian influenza in China was 28 and 5 respectively.
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Who are at high risk of infection with h7n9 avian influenza? How do humans get the h7n9 avian influenza virus?
Nationwide, this year's h7n9 avian influenza epidemic is the most serious since 2013, with the largest number of people infected in five years, Changjiang Daily reported. In January this year alone, a total of 192 cases of h7n9 avian influenza were reported in China, with 79 deaths.
The monitoring shows that the recent reported h7n9 cases are mainly retirees, domestic workers, unemployed people and rural people; the majority of the elderly; most of the cases have basic diseases; the vast majority of cases had contact with live poultry or had been to the market where live poultry were sold before the onset of the disease.
In addition, people engaged in non-scale and non-standard poultry breeding, trafficking, slaughtering and other work have more opportunities to be exposed to poisonous birds, so the risk of infection is higher. It is worth mentioning that there is no vaccine available to prevent h7n9 infection.
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According to the latest statistics of the national health and Family Planning Commission, 69 cases of h7n9 were reported nationwide from February 6 to 12, with 8 deaths! 79 people died of human infection in January! On February 19, a virus variant strain was found in cases of h7n9 infection in Guangdong Province. Winter and spring are the high incidence seasons of avian influenza. How to prevent it in daily life? Can chicken, duck and other poultry be eaten?
Chicken and duck are indispensable on the table. Is it safe to eat poultry now?
Experts said that although the transmission route and mechanism of h7n9 avian influenza virus are not fully understood at present, according to experts in epidemiology and clinical medicine, at present, the main source of h7n9 is patients' contact with live birds or market exposure.
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