Original title: China has clearly sick the week before contact with birds infected with H7N9 high-risk groups
China news agency, Beijing, April 10 - Chinese official on the evening of 10 re-released of human infection with the H7N9 avian flu, and expressly week before the onset of contact with birds by infection of H7N9 avian influenza virus high-risk groups, for example, engaged in poultry farming, trafficking sales, slaughter, processing industry personnel.
The program, since February 2013, Shanghai, Anhui, Jiangsu, Zhejiang has occurred the unexplained cases of severe pneumonia, which confirmed human infection of H7N9 avian influenza 33 cases and 9 deaths. Are sporadic cases.
The release of the program, confirmed cases in the existing "epidemiological" official deleting the previous version of "susceptible populations. Currently no conclusive evidence to show that human H7N9 avian influenza virus susceptible. for adult "content.
Source of infection for the virus to great concern, the program has been isolated in birds and their secretions or excretions H7N9 avian flu virus, and people infected with the H7N9 bird flu virus was highly homologous. The source of infection is likely to carry the H7N9 avian influenza virus in poultry. Now no one has spread from conclusive evidence.
The route of transmission, the program is clear, can also be spread through the respiratory tract, secretions or excretions through close contact with infected poultry, or direct exposure to the virus infection.
According to the findings of the incubation period for influenza and the the existing H7N9 avian influenza virus infections, the incubation period is generally within seven days.
In terms of clinical manifestations, the program mentioned general performance in patients with influenza-like symptoms, the rapid development of the condition of critically ill patients with severe pneumonia, and more in 5-7 days, body temperature mostly sustained above 39 ℃, difficulty breathing, can be associated with hemoptysis sputum . http://news.cn.yahoo.com/ypen/20130410/1698930.html
