H5N1. All flu viruses have an H number and an N number. The H refers to hemagglutinin, which is a protein that is responsible for binding the virus to the cell that is being infected. The name hemagglutinin comes from the protein's ability to cause red blood cells to clump together. Three distinct hemagglutinins, H1, H2, and H3 are normally found in human infections; 13 others have been found in animal flu viruses, including H5 in bird flu.
This FREE Application answers the following questions,
What Is Bird Flu And Should You Be Worried?
How Humans Contract Bird Flu
The Impact Of Bird Flu On Human Beings
Steps To Protect Yourself From The Deadly Bird Flu Virus
Tips If Traveling To An Area With Bird Flu