Flu is an illness caused by an infection of the influenza virus. The flu virus constantly changes and there are many different strains of flu. Find out the differences between swine flu, pandemic flu, and ordinary flu.
What is an epidemic and a pandemic?
An epidemic is a sudden outbreak of disease that spreads through a single population or region in a short amount of time.
A pandemic occurs when there is a rapidly-spreading epidemic of a disease that affects most countries and regions of the world.
An epidemic is a sudden outbreak of disease that spreads through a single population or region in a short amount of time.
A pandemic occurs when there is a rapidly-spreading epidemic of a disease that affects most countries and regions of the world.
What is swine flu?
Swine flu, or influenza A (H1N1), is a respiratory disease that infects pigs and is caused by a flu virus. There are regular outbreaks of swine flu in pigs, which become ill but rarely die from the virus. Swine flu does not normally infect humans although this does occasionally happen when people have had close contact with pigs.
There is evidence that swine flu is spreading from person to person, which could lead to what is called a 'pandemic flu outbreak'. Pandemic flu is different from ordinary flu because it is a new strain of the virus that appears in humans and spreads quickly from person to person worldwide.
The World Health Organisation (WHO) is closely monitoring cases of swine flu to see how it develops.
There is evidence that swine flu is spreading from person to person, which could lead to what is called a 'pandemic flu outbreak'. Pandemic flu is different from ordinary flu because it is a new strain of the virus that appears in humans and spreads quickly from person to person worldwide.
The World Health Organisation (WHO) is closely monitoring cases of swine flu to see how it develops.
Who is at risk?
Swine flu is a new virus so no-one will have immunity to it and everyone could be at risk of catching it. This includes healthy adults as well as older people and children.
Swine flu is a new virus so no-one will have immunity to it and everyone could be at risk of catching it. This includes healthy adults as well as older people and children.
What is pandemic flu?
Pandemic flu occurs when an influenza virus emerges that is so different from previously circulating strains that few, if any, people have any immunity to it. This allows it to spread widely and rapidly, causing serious illness.
Pandemic flu occurs when an influenza virus emerges that is so different from previously circulating strains that few, if any, people have any immunity to it. This allows it to spread widely and rapidly, causing serious illness.
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