Bird flu cases worldwide topped 200 after a dozen people were confirmed to have been infected with the avian flu virus (H5N1) in Egypt, the World Health Organization said.
“Of the 12 Avian Flu cases in Egypt, four patients have died and Web site. “Seven patients have fully recovered and been discharged from hospital.”
Humans have no natural immunity to the H5N1 virus, making it likely that people who contract any pandemic flu strain based on H5N1 will become more seriously ill than when infected by seasonal flu, the WHO said. A flu pandemic in 1918 killed about 50 million people worldwide.