2007-02-26 11:20:55 · 5 answers · asked by Female 4 in Health ➔ Diseases & Conditions ➔ Infectious Diseases
flue is an epidemic viral disease caused by inflenza virus type A and B. because the specific genetic of this virus, it can mutate (we say recombination), and becase of this too many types of this virus presents, for this reason you will not be immunized to flue infection
2007-03-02 03:07:37 · answer #1 · answered by MARYAM J 2 · 0⤊ 0⤋
Flu
OVERVIEW
Influenza, or flu, is a respiratory infection. The most familiar aspect of the flu is the way it can "knock you off your feet" as it sweeps through entire communities.
The flu differs in several ways from the common cold, a respiratory infection also caused by viruses. For example, people with colds rarely get fevers or headaches or suffer from the extreme exhaustion that flu viruses cause.
The Centers for Disease Control and Prevention (CDC) estimates 5 to 20 percent of Americans come down with the flu during each flu season, which typically lasts from November to March. Children are two to three times more likely than adults to get sick with the flu, and children frequently spread the virus to others. Although most people recover from the illness, CDC estimates that in the United States more than 200,000 people are hospitalized and about 36,000 people die from the flu and its complications every year.
Flu outbreaks
http://www.niaid.nih.gov/factsheets/flu.htm
2007-02-26 11:25:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
"The Flu" or influenza is a virus that is very easily spread from person to person via microscopic particles in saliva (sneezing, sharing drinks, coughing etc).
You know you have the true flu not just a common cold (virus) when your joints and limbs ache sooo much you can not possibly get out of bed and often accompanied by a high fever and sweating which lasts for 24 hours or more.
2007-02-26 11:30:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋
When you catch the flu virus, then you get the flu. Once you get one type of flu (one strain of the virus) you never get it again because you develop immunity. Each time you catch the flu, it's a different strain. That's why they have to make different vaccines every year, there's a new strain they have to protect people from. The old vaccine won't work. Hope that answered your question!
2007-02-26 11:30:19 · answer #4 · answered by Dana Mulder 4 · 0⤊ 0⤋
other people who have it an exposes you to it.
2007-03-01 22:11:41 · answer #5 · answered by duc602 7 · 0⤊ 0⤋