The United Nations warned today of the possibility of the deadly bird flu virus spreading again and called for greater vigilance.
The United Nations' Food and Agriculture Agency (FAO) said a mutated strain of the H5N1 bird flu virus, which appears to be resistant to existing vaccines, is spreading through China and Vietnam.
The UN reported last Sunday that a six-year-old girl in Cambodia has died of bird flu, making her the eighth person to die from the virus in Cambodia this year.
The FAO says that bird migration over the past two years has brought the H5N1 virus to countries that have not had the virus for several years, including Israel, the Palestinian territories, Bulgaria, Romania, Nepal and Mongolia.
Worldwide, since 2003, 331 people have died out of 565 confirmed cases of bird flu.
Bonus video:
