Hydroxychloroquine has been around for a long time, but it entered the headlines in late March 2020, after Fox News host Laura Ingraham, with help from Larry Ellison, the cofounder of Oracle, and possibly also Elon Musk, the entrepreneur and spaceman, planted that word like an earwig in Donald Trump’s brain. Trump, as you may have heard, is not a scientific sophisticate. He would become slightly confused some months later when discussing what he called “herd mentality,” by which he seems to have meant herd immunity (although no one can know for sure).
