First Phase of AIDS Vaccine Possibly Effective

At least 800 volunteers will be needed for China's second and third phases of AIDS vaccine trials, health officials said Friday.
The second phase of clinical trials of China's AIDS vaccine would need at least 300 volunteers and the third phase at least 500, said Sang Guowei, director of the National Institute for the Control of Pharmaceutical and Biological Products.
Sang revealed the plan at a press conference held jointly by the State Food and Drug Administration (SFDA) and Ministry of Science and Technology.
The later trials would...
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