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How big is the virus that causes swine flu?

How big is the virus that causes swine flu?

The viruses are 80–120 nanometres in diameter. Swine influenza is an infection caused by any one of several types of swine influenza viruses. Swine influenza virus ( SIV) or swine-origin influenza virus ( S-OIV) is any strain of the influenza family of viruses that is endemic in pigs.

What are the symptoms of swine flu for children?

Classically, with influenza, children have sudden onset of significant fever with respiratory symptoms. High fever, chills. Older children will complain of headache, scratchy sore throat, and muscle aches. Children will develop a nasal congestion and cough .”

What kind of influenza is endemic in pigs?

Swine influenza virus (SIV) or swine-origin influenza virus (S-OIV) is any strain of the influenza family of viruses that is endemic in pigs. As of 2009, the known SIV strains include influenza C and the subtypes of influenza A known as H1N1, H1N2, H2N1, H3N1, H3N2, and H2N3.

How does the swine flu virus spread from farm to farm?

The virus usually spreads quickly through a herd, infecting all the pigs within just a few days. Transmission may also occur through wild animals, such as wild boar, which can spread the disease between farms.

The viruses are 80–120 nanometres in diameter. Swine influenza is an infection caused by any one of several types of swine influenza viruses. Swine influenza virus ( SIV) or swine-origin influenza virus ( S-OIV) is any strain of the influenza family of viruses that is endemic in pigs.

How many people died from the swine flu in 2009?

By November 14, 2009, the virus had infected one in six Americans with 200,000 hospitalisations and 10,000 deaths—as many hospitalizations and fewer deaths than in an average flu season overall, but with much higher risk for those under 50.

Can you have swine flu, bird flu, and human flu?

It is even possible to include RNA strands from birds, swine, and human influenza viruses into one virus if a single cell becomes infected with all three types of influenza (for example, two bird flu, three swine flu, and three human flu RNA segments to produce a viable eight-segment new type of flu viral genome).

Swine influenza virus (SIV) or swine-origin influenza virus (S-OIV) is any strain of the influenza family of viruses that is endemic in pigs. As of 2009, the known SIV strains include influenza C and the subtypes of influenza A known as H1N1, H1N2, H2N1, H3N1, H3N2, and H2N3.

How many people died from the swine flu in China?

Nevertheless, fears of a replay of the 1918 pandemic lead to 48 million people being hastily vaccinated against the swine flu virus. The vaccine is associated with an unusual number of cases of Guillain-Barré syndrome: 532 people get it, and 25 die. An H1N1 virus appears in north-east China and starts circulating in humans.

How long does it take to diagnose swine flu?

To diagnose swine influenza A infection, a respiratory specimen would generally need to be collected within the first 4 to 5 days of illness (when an infected person is most likely to be shedding virus). However, some persons, especially children, may shed virus for 10 days or longer.

How is swine flu transmitted from person to person?

Influenza viruses can be directly transmitted from pigs to people and from people to pigs. Human infection with flu viruses from pigs are most likely to occur when people are in close proximity to infected pigs, such as in pig barns and livestock exhibits housing pigs at fairs. Human-to-human transmission of swine flu can also occur.