The story of Precious Thomas, the brave little girl fighting HIV, captured people’s attention in the 1990s, and changed hearts and minds about the AIDS epidemic. And when Gary Davis’ serum seemingly brought about a dramatic improvement in the girl’s health, it gave a major boost to his profile...

Gary Davis wanted to leave England and all of his troubles there behind. Eventually, he reconnected with an American investor, somebody he thought could reclaim the serum, gain legitimacy for it in the US — and perhaps keep the circling sharks at bay. The new effort to bring the serum to market...

Goat’s blood is in the water, and sharks are circling. A powerlifter from North Carolina has connected Gary Davis to a wealthy and influential man in London, who appears to have unlimited resources. Dr. Davis desperately needs financial support, but also wants to hold on to his own vision for the...