[单项选择]从HIV感染到发展为典型AIDS分为
A. 急性感染期、无症状感染期、艾滋病相关综合征、艾滋病(艾滋病完全型)
B. 隐形感染期、无症状感染期、艾滋病相关综合征、艾滋病(艾滋病完全型)
C. 急性感染期、隐形感染期、艾滋病相关综合征、艾滋病(艾滋病完全型)
D. 隐形感染期、急性感染期、艾滋病相关综合征、艾滋病(艾滋病完全型)
E. 急性感染期、艾滋病相关综合征、无症状感染期、艾滋病(艾滋病完全型)

[简答题]
AIDS has now surpassed the Black Death on its course to become the worst pandemic in human history. At the end of 2004, 20 million people had been killed by it, and twice that number is currently infected with HIV. Barring a medical breakthrough, it could claim the lives of some 60 million people by 2015. AIDS exerts a terrible toll on societies, crippling their economies, decimating their labor forces and orphaning their children.
Nine out of 10 people living with HIV are in the developing world; 60 to 70% of those are in Sub-Saharan Africa. But the disease is spreading in every region, with fierce epidemics threatening to tear through countries such as India, China, Russia and the islands of the Caribbean. The statistics are sobering — in some Southern African towns 44% of pregnant women are HIV positive, in Botswana 37% of people carry the virus.
Immune assassin
The human immunodeficie

[单项选择]
AIDS has now surpassed the Black Death on its course to become the worst pandemic in human history. At the end of 2004, 20 million people had been killed by it, and twice that number is currently infected with HIV. Barring a medical breakthrough, it could claim the lives of some 60 million people by 2015. AIDS exerts a terrible toll on societies, crippling their economies, decimating their labor forces and orphaning their children.
Nine out of 10 people living with HIV are in the developing world; 60 to 70% of those are in Sub-Saharan Africa. But the disease is spreading in every region, with fierce epidemics threatening to tear through countries such as India, China, Russia and the islands of the Caribbean. The statistics are sobering — in some Southern African towns 44% of pregnant women are HIV positive, in Botswana 37% of people carry the virus.
Immune assassin
The human immunodeficiency viru
A. People killed by it are the same in number with the people being infected with HIV.
B. It poses serious problems to human beings’ development both in medical and in social sense.
C. Most of the people killed by it are from the developing world.
D. 44% of women are HIV positive in some Southern African towns.

[填空题]

When was HIV/AIDS first recognized

[单项选择]HIV引起AIDS的感染类型属于
A. 急性感染
B. 慢发病毒感染
C. 隐性感染
D. 慢性感染
E. 显性感染

[单项选择]Could HIV, the virus that causes AIDS, be weakening The results of a study conducted in Belgium, at the Institute of Tropical Medicine in Antwerp, seem to suggest that in one corner of the world it might be. The report, published in the latest issue of AIDS, a specialist journal, concludes that HIV’s ability to replicate (known technically as its virulence) may have decreased since the start of the pandemic. Kevin Aden, the lead author of the paper, stresses that the study is based on a small set of samples and does not prove that HIV’s virulence is attenuating around the world. However, it does offer new insights into the evolution of the disease.
Dr. Arien looked at 24 blood samples collected from untreated patients attending an HIV/ AIDS clinic in Antwerp. A dozen of these samples were taken between 1986 and 1989; the other 12 were collected between 2002 and 2003. First, he analyzed the samples to find their viral load (the number of virus particles per cubic centimeter) and th
A. The result of Arien’s research is worth further studies.
B. the result of Dr. Arien’s research is not true.
C. Dr. Arien’s conclusion has been made by others before.
D. Dr. Arien’s result is based on the small size of study.