Africa's first outbreak of the deadly H5N1 strain of bird flu has been confirmed in Nigeria. The Paris-based World Organization for Animal Health said Wednesday the virus killed 40-thousand chickens on a farm in Kaduna state. The rest of the birds have been destroyed and the area has been quarantined. There are no reports of human bird flu cases in Nigeria. But the U.N. World Health Organization has called for a public information campaign to prevent a possible spread to humans. The W.H.O. says it has no clear information how the virus spread to Africa Meanwhile, Chinese officials report a 26-year old woman in eastern Fujian province has been hospitalized for bird flu. And Vietnamese authorities have fired two government officials who allegedly stole money earmarked for fighting the disease. Bird flu has killed 88 people in southeast Asia, China, and Turkey since 2003, with Vietnam the country worst-hit.