Main clinical manifestations and epidemic characteristics of highly pathogenic avian influenza

　　Xinhuanet Beijing, February 2 (Reporter Yao Runfeng, Dong Jun) According to the introduction of the Office of the National Command for the Prevention and Control of Highly Pathogenic Avian Influenza, the acute infection of avian influenza has no specific clinical symptoms, and in a short period of time, symptoms such as loss of appetite, sudden rise in body temperature and high mental depression can be seen, accompanied by a large number of deaths.

　　Highly pathogenic avian influenza is similar to common avian influenza virus, which can be prevalent all year round, but it is easy to be prevalent in winter and spring because avian influenza virus has strong resistance at low temperature. All kinds of birds with different ages can be infected with highly pathogenic avian influenza, which has an acute onset and rapid spread, and its mortality rate can reach 100%.

　　Avian influenza is short for avian influenza. According to the different pathogenicity of avian influenza, avian influenza can be divided into highly pathogenic avian influenza, low pathogenic avian influenza and non-pathogenic avian influenza. Recently, avian influenza caused by H5N1 serotype at home and abroad is called highly pathogenic avian influenza, with high morbidity and mortality and great harm. Xinhuanet (Editor: Liu Feng)