Myrna Watanabe | Jun 24, 2001 | 10 min read
Editor's Note: This is the second of two articles that looks at the progression of AIDS research over the 20 years since its identification. The first part: M.E. Watanabe, "AIDS, 20 years later," The Scientist, 15[12]:1, June 11, 2001. Despite billions of dollars spent in research funds and a brief reprieve in Western nations after the introduction of multidrug therapy, AIDS continues to win its battle against humankind. First diagnosed 20 years ago, there are still no cures and no vaccines. Pre