禽流感H7N9英文PPT介紹

1、h7n9introductionintroductionfeaturesmeasurescontentsintroductionfeaturesmeasures總體概況contents第一部分調研方法part 1 influenza h7n9 viruses are a group of influenza viruses that normally circulate among birds.introductiondefinition第一部分調研方法 main symptoms1.fever2.cough 3. shortness of breathfeaturespart 2第一部分調研

2、方法 differences from h5n1 and h1n1(1)all three viruses are influenza a viruses but they are distinct from each other. (2)h7n9 and h5n1 are considered animal influenza viruses that sometimes infect people.(3) h1n1 viruses can be divided into those that normally infect people and those that normally in

3、fect animals.part 2features第一部分調研方法 the ways people get infected some of the confirmed cases had contact with animals or with an animal environment. the virus has been found in a pigeon market in shanghai. it is not yet known how persons became infected. the possibility of animal-to-human and person

4、-to-person transmission is being investigated. part 2features第二部分measurespart 3(1) hand hygiene (2) respiratory hygiene(3) food safety measuresprevention第二部分measurespart 3steps of washing your handsprevention第二部分measurespart 3cover your mouth and nose with a medical mask, tissue, or a sleeve or flex

5、ed elbow when coughing or sneezing; throw the used tissue into a closed bin immediately after use; perform hand hygiene after contact with respiratory secretions.respiratory hygiene第二部分measurespart 3avian influenza is not transmitted through cooked food. to date, no evidence indicates that anyone ha

6、s become infected following the consumption of properly cooked poultry or poultry products, even when these foods were contaminated with the h9n7 virus.food safety第二部分measurespart 3no vaccine for the prevention of influenza a(h7n9) infections is currently available. however, viruses have already been isolated and characterized from the initial cases. who, with partners, will continue to characterize available influenza