Bird flu viruses and Causes:

Different Categorize Influenza

OVER VIEW:

Viruses are masters of inter species navigation. Mutating rapidly and often grabbing S the genetic material of other viruses, they can jump from animals to humans with a quick flick of their DNA. Sometimes, as in west Nile fever the transfer occurs through an intermediate host such as a mosquito. But viruses can also make the leap directly.

Since the 1980s, the list of diseases that have hitchhiked directly from animals to people has grown rapidly-antivirus, SARS, monkey pox and, most recently, avian influence, commonly called bird flu. With the exception of HIV/AIDS, perhaps none of these illnesses has more potential to create widespread harm than bird flu does. 

I people, bird flu usually being much like conventional influenza, with fever, cough, sore throat and muscle aches, but bird flu can lead to life-threatening complications. So far, bird flu is hard for humans to contract but health officials warm a major flu outbreak could occur if the virus mutates into a form that can spread easily from person to person. The grimmest scenario world is a global epidemic to rival the flu pandemic of 1918 and 1919, which claimed millions of lives worldwide. In the main time, researchers are trying to sort out options for a vaccine. But flu seems to be developing resistance to the flu drug Tami flu. And a French vaccine that promoted an immune system response but still needs flu there study. 

Recycle

Causes:              

Lying in bed with chills, a spiking fever and that run-over-by-a-truck feeling, you are not likely to care much about the habits and history of flu viruses. But epidemiologists do care and with good reason.

Each winter, an average of 36000 people dies of influenza in the United States. And three or four times every century, a flu pandemic sweeps the globe, claiming millions of lives. That the flu can cause so much misery on both the small and the grand scale is a result of its ability to change quickly and unexpectedly to outwit “ best guess” vaccines, and to take the immune system by storm.