Five African countries are currently conducting phase I and phase II clinical trials of candidate HIV vaccines: Botswana, Kenya, Rwanda, South Africa, Uganda, soon to be joined by Tanzania.

五个非洲国家目前正在开展候选艾滋病毒疫苗的一期和二期临床试验：博茨瓦纳、肯尼亚、卢旺达、南非、乌干达，坦桑尼亚很快也将介入。

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Hope Ferdowsian of the Physicians Committee says "For example,in HIV research, we've learned a lot from human epidemiological studies and ethically conducted clinical trials."

VOA: standard.2010.02.16

More distantly, about 20 HIV vaccines are currently in clinical trials, according to the New York-based AIDS Vaccine Initiative (IAVI).

FORBES: Magazine Article

Another 60 antivirals have begun clinical trials, aimed primarily at HIV, the virus that can lead to AIDS, and hepatitis B and C.

FORBES: The Golden Age of Antiviral Drugs