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The deadly bird flu so far has claimed a confirmed 18 lives in Vietnam and Thailand, though the suspected toll is higher at 23.
The deadly bird flu so far has claimed a confirmed 18 lives in Vietnam and Thailand, though the suspected toll is higher at 23.
admin
2009-09-12
51
问题
The deadly bird flu so far has claimed a confirmed 18 lives in Vietnam and Thailand, though the suspected toll is higher at 23. Millions of birds have been culled across Asia in an effort to stop the spread of the disease. The U.N. health agency said that testing of virus material from a 23-year-old Vietnamese woman who died of the HSN1 avian flu virus showed no human transmission. The woman and her 30-year-old sister were confirmed victims of bird flu. Their brother died of a flu-like illness but because his body was cremated (焚化), there was no chance to test for the virus. "WHO has today received the results from a study of virus isolated from a 23-year-old woman who is part of a family cluster in Vietnam under investigation as the first possible instance of human-to-human transmission," the agency said in a statement posted on its Web site. "Virus genetic material from this woman, as for the other case in this cluster, is of avian origin and contains no human influenza genes," it said.
The WHO also said Chinese authorities had announced a suspected bird flu outbreak at a chicken farm in Tianjin, east of the Chinese capital Beijing. "Altogether, outbreaks of H5N1 in poultry are suspected or confirmed at 39 farms in 14 of China’s provinces, autonomous regions and municipalities," it said. No human cases have been reported in China yet. Experts say the bird flu virus must transform before it can be passed easily from person to person, although people can catch it from birds. Earlier this week, the WHO warned the bird flu outbreak in Asia could take two years to get under control. "We are probably looking at six months to two years before some of these outbreaks can be brought under total control in the poultry population, " said Mike Ryan, the WHO’s global response co-coordinator for avian flu, The Associated Press reported.
Along with Thailand, Vietnam and China, bird flu outbreaks have been reported in Indonesia, Japan, South Korea, Laos, Cambodia and Pakistan.
选项
A、the woman got the virus from her sister
B、the woman’s brother was also infected by bird flu
C、the woman is the first instance of confirmed victims
D、there was no evidence of human transmission yet
答案
D
解析
本题问“对越南女于的病毒检查暗示了什么?”第一段中第三句提到“testing of virus material from a 23-year- old Vietnamese woman who died of the H5N1 avian flu virus showed no human transmission.”也就是说,对这个死于禽流感的女子身上病毒取样的检测,证实了禽流感还没有在人类中传播。由此可知[D]“尚没有人际传播的证据”正确。[A]“此女从她姐姐那儿感染的病毒”。文中已经提到了“bird flu”不会在人之间传播。[B]“此女的哥哥也感染了禽流感”。文中只说此女子的哥哥“... died of a flu-like illness”,不能肯定他就是得了“bird flu”。[C]“此女子是第一例被证实的禽流感受害者”。文中没有提及。
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0
大学英语四级
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