Swine flu is caused by the H1N1 strain of the influenza virus. The influenza virus constantly changes and mutates in order to escape the immune system of the animal it infects.
by the third week of April it was established that the illness resulted from a triple recombination of human, avian, and swine influenza viruses; the virus has been found to be H1N1.—
Subsequently, What does H1N1 mean?
In the spring of 2009, scientists recognized a particular strain of flu virus known as H1N1. This virus is a combination of viruses from pigs, birds and humans that causes disease in humans. During the 2009-10 flu season, H1N1 caused the respiratory infection in humans that was commonly referred to as swine flu.
Also, Where did the swine flu come from?
The 2009 swine flu outbreak originated in Veracruz, Mexico. Health workers traced the virus to a pig farm in this southeastern Mexican state. A young boy who lived nearby was among the first people to contract the swine flu. He lived, but others in the area came down with the flu and died.
Why is it called H1N1?
H1N1 flu is also known as swine flu. It’s called swine flu because, in the past, the people who caught it had direct contact with pigs. That changed several years ago, when a new virus emerged that spread among people who hadn’t been near pigs.
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What does the H and N mean in flu?
H & N. The H stands for one of the 16 different hemagglutinin proteins contained in a virus that allows it to penetrate a foreign body. The “N” stands for another protein in the genetic make-up of a flu virus called neuraminidase, of which there currently exist nine variations.
How did H1N1 originate?
The 2009 swine flu outbreak originated in Veracruz, Mexico. Health workers traced the virus to a pig farm in this southeastern Mexican state. A young boy who lived nearby was among the first people to contract the swine flu.
What’s the difference between H1N1 and regular flu?
Seasonal influenza is the regular yearly influenza caused by two main types of flu virus: A and B. Novel H1N1 is a new flu virus that was first detected in March 2009. Since H1N1 flu is a new strain, most people don’t have a resistance to it. This means that illness from this virus may spread more quickly.
What did H1N1 do to the body?
H1N1 influenza is a subtype of influenza A virus, a communicable viral illness which causes upper and in some cases lower respiratory tract infections in its host. This results in symptoms such as nasal secretions, chills, fever, decreased appetite, and in some cases, lower respiratory tract disease.
What flu is worse A or B?
Frequently asked questions about Influenza A and B Influenza type A and type B are similar, but type A is overall more prevalent, sometimes more severe, and can cause flu epidemics and pandemics.
What is meant by H1N1 virus?
In the spring of 2009, scientists recognized a particular strain of flu virus known as H1N1. This virus is a combination of viruses from pigs, birds and humans that causes disease in humans. During the 2009-10 flu season, H1N1 caused the respiratory infection in humans that was commonly referred to as swine flu.
How did the swine flu originate?
The 2009 swine flu outbreak originated in Veracruz, Mexico. Health workers traced the virus to a pig farm in this southeastern Mexican state. A young boy who lived nearby was among the first people to contract the swine flu. He lived, but others in the area came down with the flu and died.
How long does Type A flu last?
For most healthy people, the influenza type A is an uncomfortable but short-term illness that resolves itself as the immune system fights it off. Symptoms usually appear from one to four days after exposure to the virus, and they last five to seven days.
How long did H1N1 take to go away?
The 2009 swine flu pandemic was an influenza pandemic that lasted about 19 months, from January 2009 to August 2010, and was the second of two pandemics involving H1N1 influenza virus (the first being the 1918–1920 Spanish flu pandemic).
How did swine flu spread to humans?
Swine influenza (novel H1N1 and H3N2v) spreads from person to person, either by inhaling the virus or by touching surfaces contaminated with the virus, then touching the mouth or nose. Infected droplets are expelled into the air through coughing or sneezing.
Is type A flu the worst?
Type A influenza can be dangerous and is known to cause outbreaks and increase your risk of disease. Unlike a type B infection, type A viruses are categorized by subtypes and strains. Influenza A mutates faster than influenza B, but both viruses are always changing, creating new strains from one flu season to the next.
What is the difference between Type A flu and H1N1?
Flu (influenza) viruses are divided into four broad categories: influenza A, B, C or D. Influenza A is the most common type. H1N1 flu is a subtype of influenza A. Subtypes of influenza A are categorized based on two proteins on the surface of the virus, hemagglutinin (H) and neuraminidase (N).
What does the H1N1 stand for?
by the third week of April it was established that the illness resulted from a triple recombination of human, avian, and swine influenza viruses; the virus has been found to be H1N1.—
How long are you contagious with Type A flu?
People with flu are most contagious in the first three to four days after their illness begins. Most healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick.
How long does it take to get over flu type A?
Flu symptoms, including fever, should go away after about 5 days, but you may still have a cough and feel weak a few days longer. All your symptoms should be gone within 1 to 2 weeks.
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