Bird Flu

Bird flu refers to an illness caused to a particular host caused be any of species of influenza virus. This bird flu is also called as Avian Influenza in which birds are affected by a particular influenza A virus. It is usually spread from bird to bird. Bird flu is technically caused by H5N1 and H7N9 bird flu viruses. This influenza virus attacks the birds and when humans consume them, they will be affected by this virus, where humans do not have any immunity against the virus and so causes severe effects.

Prevention: There is no treatment for bird flu and the virus is most effective to humans and so prevention can only be done by taking certain precautionary measures like will preferring birds as a source of food better to check them whether they are affected by any virus or not.

After a slow start, the virus spread rapidly in the UK in July 2009, with new cases peaking at 110,000 in the last week of that month, according to The Health Protection Agency's modelling estimate, but declining sharply in the first week of August 2009. Cases fell progressively down to 3,000 in the first week of September 2009, then began to rise again. The decline in cases during the summer had been predicted, but a large surge was expected in the autumn to coincide with the normal flu season. Cases rose to 84,000 by the end of October, well below the summer's peak and then declined during November.