Ringworm is one of the most common and widespread childhood maladies. Deceptive in its naming, ringworm is no parasite but rather a fairly mild, though atrociously itchy, fungal skin infection that affects 300 million people worldwide. An infection with the contagious Tinea capitis fungus is usually summarily dismissed by means of antifungal medications, but for decades prior to the discovery of such cures in the 1950s, infections with ringworm and other species of fungus were as intractable and as challenging as their bacterial counterparts. The mid-twentieth century, as modern an era as it seems, marked the early days of effective antimicrobial treatments, and though practical pharmaceuticals for bacterial, viral, and fungal afflictions were on the horizon, they were still far from universally available.
Without successful and accessible treatments, ringworm could be a temporarily disfiguring infection. The fungus would infect the skin, the scalp, or the nails, causing characteristic halos of ...