The international AIDS conference highlighted the substantial progress that Thailand has made in reducing the frequency of mother-to-child transmission of HIV and providing antiretroviral treatment. Now, Krisana Kraisintu, the Thai pharmaceutical chemist who helped to spearhead her nation's response to AIDS, has embarked on a self-assigned mission — to bring affordable antiretroviral treatment to three African countries.Kraisintu is the former director of the Research and Development Institute of the Government Pharmaceutical Organization (GPO) in Thailand and a pioneer in the production of generic antiretroviral medications. In 1995, she brought antiretroviral treatment to Thailand by producing zidovudine to protect newborns . . .