流感與H1N1
流感是流感的簡稱。流感病毒引起流感。流感病毒主要有三種類型：流感病毒A（可感染人和鳥類）、流感病毒B（只感染人）和流感病毒C（可感染人、狗和豬）。這些病毒被稱為RNA病毒，這意味著它們在RNA中含有遺傳物質。每種病毒都有亞型。它們被稱為血清型。然而，由於甲型流感病毒的亞群造成更危險的感染和死亡，甲型流感病毒開始流行。豬流感是2009年廣泛傳播的流感之一。那是大流行**冒。
Usually flu is a seasonal infection. During winter it spreads. This can spread from the patient to another normal individual by droplets. When a person cough or sneeze this virus will be released in the air and inhaled by the other people and infect them. So using mask and using handkerchief while sneezing will reduce the infection from one to another.
Flu is a self limiting infection. The viral infection will settle spontaneously with out any treatment. The infected person may develop common cold, fever, cough, body ache, headache and sore throat. In serious illness they may develop pneumonia (Lung infection).
H1N1 is a serotype of the influenza virus which got the popularity last year. However H1N1 stain(sub group) is rarely caused death compared with H5N1 (another serotype of Influenza A).
H1N1 influenza share all the characteristics of the flu, but unlike other flu, its spread all over the world causing pandemic infection. The list below will show the pandemics of influenza virus that occurred early.
- 1918年導致西班牙流感的H1N1和2009年的豬流感
- 1957年導致亞洲流感的H2N2
- 1968年導致香港流感的H3N2
- 2004年導致禽流感的H5N1病毒
- H7N7，具有非同尋常的人畜共患病潛能[20]
- H1N2，人、豬和鳥類特有
- 氫9N2
- 氫7N2
- H7N3型
- H10N7型
Infection control:
Simple measures can reduce the infection rate; good ventilation, sunlight and washing hands regularly have proofed to reduce the infection spreading from one to another. During pandemics the mask was used.
Treatment for flu is mainly supportive. Vaccine is available for flu. But the duration of this immune protection is for short period (1 or 2 years) because the virus changes time to time.
