文档介绍：Speaker: Chen jia Maker: Xue bei Zhao yanling Wang Xiqi
编辑ppt
Content
1 a cold or flu is important because the flu can have serious complications such as pneumonia （急性肺炎）or even death. Treating flu within 48 hours of symptoms is best. Prescription antiviral drugs may cut the time you're sick.
编辑ppt
Types of Flu
There are three types of flu viruses: A, B, and C.
Influenza A can infect a range of mammals and birds as well as humans, while types B and C infect mainly humans.
编辑ppt
H1N1 Influenza (Swine Flu)
H1N1 influenza is a type of influenza A. It is known as swine flu because it primarily infects pigs. Transmission to humans is uncommon, but it can occur if humans come into contact with infected pigs or with environments contaminated by the virus. An infected human can then spread the disease to other humans.
编辑ppt
Although it also circulates in pigs, you cannot get it by eating properly handled and cooked pork or pork products.
The best way to prevent the H1N1 flu is to get the seasonal flu vaccine. You should also follow our advise to keep yourself healthy during flu season.
H1N1 Influenza (Swine Flu)
编辑ppt
H5N1 Bird Flu
The avian influenza virus, or bird flu, occurs naturally in wild birds, but does not make them sick. Because the virus is very contagious among birds, avian influenza virus can be deadly if transmitted to domesticated birds. Human infections are caused by transmission of the Influenza A virus from infected birds to humans.
编辑ppt
H5N1 Bird Flu
Although H5N1 does not usually infect humans, nearly 650 cases of human cases of H5N1 have been reported from 15 countries since 2003.
编辑ppt
Fever and cough
Acute respiratory distress
Shortness of breath/difficulty breathing
Abdominal pain
Diarrhea
Symptoms
编辑ppt
How can we prevent highly pathogenic H5N1 virus infection?
The best way to prevent infection is to avoid any contact with sick or dead poultry. This includes avoiding visitin