Willy Rozenbaum, however, was convinced. You don’t find a new human virus that often; it was beyond coincidence. And his priority was to save lives. He was tired of treating the various opportunistic infections associated with AIDS. It was like putting a brick in one bank of the dam only to know the other side would collapse in minutes. He wanted an anti-viral drug, maybe a substance that could interfere with the enzyme with which any retrovirus multiplied, reverse transcriptase. One afternoon,
