Avian influenza, often called bird flu, is caused by influenza A viruses that naturally circulate among wild waterfowl and other birds. One strain, …
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.
Read More at Source.