 An internal report compiled in August 2002 by the Henan Ministry of Health, leaked by prominent AIDS activist Wan Yanhai, estimated that 35-45% of blood donors in some areas of the province had been infected due to poor safety precautions in clinics.The Chinese government was slow to admit and respond to the problem after it was identified, and initially repressed efforts to expose it.Shuping Wang and Gao Yaojie, two female doctors from Henan, mounted campaigns to expose the dangerous practices they saw in the early 1990s that put donors at risk for HIV infection.