At the Guangdong Winsun Bio Pharmaceutical company in Guangdong Province, China, workers introduce the bird flu virus to chicken embryos to produce vaccines. China has developed a series of vaccines in a bid to control the flu, according to state media. (Photo taken Nov. 1, 2005)
Philippe Carruette, ornithologist at the Parc du Marquenterre in France, captures migratory birds to observe and band, as well as for stool samples. The park has worked with the Institut Pasteur since 1975 to research and track viruses, such as the bird flu, that are spread by migratory birds.
A Romanian veterinarian takes a blood sample from a domestic goose in the village of Vadul Oii, east of Bucharest. Some 400 villagers will be vaccinated there, and blood samples from domestic birds will be taken. Romanian authorities confirmed on Oct. 31 the presence of the bird flu virus in a dead wild goose found near the village.
A man waits to buy a chicken at the Sanguantang market, Shanghai's biggest for eggs and fowl. The market has been strictly disinfected to prevent bird flu.