国产av不卡一区二区_欧美xxxx做受欧美_成年人看的毛片_亚洲第一天堂在线观看_亚洲午夜精品久久久中文影院av_8x8ⅹ国产精品一区二区二区_久久精品国产sm调教网站演员_亚洲av综合色区无码一二三区_成人免费激情视频_国产九九九视频

WHO: Vietnam bird flu infects fast, high mortality
By (Agencies)
Updated: 2004-02-13 15:17

Human victims of the bird flu sweeping Asia fell sick quickly and a high proportion of them were killed by the virulent virus, the World Health Organization said in a study of 10 cases in Vietnam.

The virulent H5N1 bird flu virus, suspected to have been spread by migrating birds, has broken out in eight Asian countries, devastating poultry flocks and killing at least 14 people in Vietnam and five in Thailand.

Six of Vietnam's human victims got sick about three days after being exposed to the virus, and out of the 10 cases studied, eight of them died about 10 days after the onset of illness, the WHO said in a report on the first clinical and epidemiological data from Vietnam.

Asia's human victims are believed to have caught the disease from contact with sick chickens, but fears persist that the virus could combine with a human flu virus and mutate into a deadly disease that could be passed between people.

Of the 10 Vietnamese victims studied, nearly all had direct contact with chickens or ducks, ranging from a boy who loved cock fighting to farmers who caught the virus after preparing butchered chickens.

Eight of the people studied by Vietnamese medical experts have died, one of them recovered and one was in critical condition, said the WHO in a report posted on its Web site at http://www/who.int.

While issuing the study, the U.N. health agency cautioned that limited infection between people could not be ruled out yet.

Two sisters who died in January from the virus were found to have only avian and no human influenza, but the WHO said that was not conclusive proof they caught it from poultry and not from their brother, who died of a respiratory illness.

"It still remains an unresolved question," said Robert Dietz, WHO's spokesman in Vietnam Friday. He said the issue may never be resolved. The brother was not tested as his body was cremated.

The WHO said main symptoms of the bird flu were a fever of more than 100.4 degrees Fahrenheit, shortness of breath and coughing.

Close