Arzey George
Elizabeth Macarthur Agricultural Institute, NSW Department of Primary Industries.
N S W Public Health Bull. 2006 Jul-Aug;17(7-8):107-11. doi: 10.1071/nb06026.
Avian influenza viruses may cause mild or severe disease in birds. There have been five recorded outbreaks of highly pathogenic avian influenza in birds in Australia, all of which were caused by the H7 subtype. These were quickly controlled and similar coordinated responses are expected for possible future outbreaks of avian influenza. Migratory birds are not regarded as the source of these outbreaks, and the prevalence of avian influenza viruses in wild birds in Australia is very low. Avian influenza H5N1, which emerged in birds in China in 1996, has spread to bird flocks in Asia, Europe and Africa. The main carriers of avian influenza, ducks, do not migrate to Australia, and currently the risk of H5N1 occurring in Australian birds appears to be low. Nevertheless, surveillance and response plans for outbreaks of highly pathogenic avian influenza have recently been upgraded across Australia.
禽流感病毒可在禽类中引发轻度或严重疾病。澳大利亚已记录到五起禽类高致病性禽流感疫情，均由H7亚型引起。这些疫情很快得到控制，预计未来可能发生的禽流感疫情也会有类似的协调应对措施。候鸟不被视为这些疫情的源头，澳大利亚野生鸟类中禽流感病毒的流行率非常低。1996年在中国禽类中出现的H5N1禽流感已传播到亚洲、欧洲和非洲的禽群。禽流感的主要传播者鸭子不会迁徙到澳大利亚，目前H5N1在澳大利亚禽类中发生的风险似乎较低。尽管如此，澳大利亚各地最近已升级了高致病性禽流感疫情的监测和应对计划。
