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Swine flu (swine influenza) is a respiratory disease caused by viruses (influenza viruses) that infect the respiratory tract of pigs, resulting in nasal secretions, a barking cough, decreased appetite, and listless behavior.

Swine flu produces most of the same symptoms in pigs as human flu produces in people. Swine flu can last about one to two weeks in pigs that survive. Swine influenza virus was first isolated from pigs in 1930 in the U.S.

Swine flu is transmitted from person to person by inhalation or ingestion

of droplets containing virus from people sneezing or coughing; it is

not transmitted by eating cooked pork products.

What is Swine Flu

Swine flu is a respiratory disease caused by influenza viruses that infect the respiratory tract of pigs and result in a barking cough, decreased appetite, nasal secretions, and listless behavior; the virus can be transmitted to humans.

Swine flu viruses may mutate (change) so that they are easily transmissible among humans.

Symptoms of swine flu in humans are similar to most influenza infections: fever (100 F or greater), cough, nasal secretions, fatigue, and headache.

Vaccination is the best way to prevent or reduce the chances of becoming infected with influenza viruses.

Two antiviral agents, zanamivir (Relenza) and oseltamivir (Tamiflu),

have been reported to help prevent or reduce the effects of

swine flu.

Swine Flu Facts

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Swine flu is unusual because it doesn't target the same age group as the rhinovirus (typical flu). The disease focuses on young adults. This is unusual because most flu viruses attack those who are elderly or very young. Some form of immunity to swine flu may exist in the elderly due to previous flu exposures.

Other risk factors for swine flu include:

compromised immune system (from a disease such as AIDS)

pregnancy

past history of infections

Risk Factors of Swine Flu

The swine flu is caused by a strain of influenza virus that usually only infects pigs. Unlike typhus, which can be transmitted by lice or ticks, the main transmission isn't from pigs to people, but rather from person to person.

Swine flu is very contagious. The disease is spread through saliva and mucus particles. People may spread them by:

sneezing

coughing

touching a germ-covered surface and then touching their eyes or nose

Causes of Swine Flu

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People who have swine flu can be contagious one day before they have any symptoms, and as many as 7 days after they get sick. Kids can be contagious for as long as 10 days.

Swine flu symptoms develop about one to three days after you're exposed to the virus and continue for about seven days.

Symptoms of Swine Flu

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Swine flu signs and symptoms in humans are similar to those of other flu strains:

Fever

Cough

Sore throat

Runny or stuffy nose

Body aches

Headache

Chills

Fatigue

Diarrhea

Vomiting

Symptoms of Swine Flu

It's not necessary to see a doctor if you're generally healthy and develop flu signs and symptoms, such as fever, cough and body aches. Call your doctor, however, if you have flu symptoms and you're pregnant or you have a chronic disease, such as emphysema or a heart condition.

When to see a doctor

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A diagnosis is made by sampling fluid from those with swine flu. To take a sample, a doctor or nurse may swab your nose or throat.

The swab will be analyzed using various genetic and laboratory techniques to identify the specific type of virus.

Diagnosing Swine Flu

http://www.webmd.com/cold-and-flu/flu-guide/h1n1-flu-

virus-swine-flu

http://www.healthline.com/health/swine-flu#Causes3

http://www.mayoclinic.org/diseases-conditions/swine-

flu/basics/symptoms/con-20034916

SOURCE