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Swine Flu, what to look for!
Swine flu has spread across the world since emerging in Mexico and is now officially the first flu pandemic for 40 years. Experts fear millions of people will be infected.
What is swine flu and what are the symptoms?
Swine flu is a respiratory disease, caused by a strain of the influenza type A virus known as H1N1.
H1N1 is the same strain which causes seasonal outbreaks of flu in humans on a regular basis.
But this latest version of H1N1 is different: it contains genetic material that is typically found in strains of the virus that affect humans, birds and swine.
Although the strain may have originated in pigs, it is now a wholly human disease.
It can be spread from person to person by coughing and sneezing.
Symptoms of swine flu in humans appear to be similar to those produced by standard, seasonal flu.
A fever - which is a temperature of 38ºC (100.4ºF) - is the key symptom, combined with other complaints which may include a cough, sore throat, body aches, chills and aching limbs. Some people with the virus have also reported nausea and diarrhoea.
As with normal flu, the severity of symptoms will depend on treatment and the individual. Many people have only suffered mildly and have begun to recover within a week.
People are most infectious soon after they develop symptoms, but they cease to be a risk once those symptoms have disappeared. The incubation period may be as little as two days.
Link BBCPosted on Monday 14th September 2009
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