This study illustrates just one of the ways in which radioactive fallout from atmospheric nuclear testing in the 20th century has lasted four decades after such experiments ended. In addition to turning wild boars into an irradiated menace, the explosions that dispersed radioactive debris in the atmosphere have also increased cancer risks in humans through internal and external irradiation exposures.
Nuclear weapons testing could be behind radioactive wild boars, but it's a fallacy that detonations into the atmosphere other than the Castle Bravo test — and even the Chernobyl and Fukushima accidents — have caused adverse human health effects, as the radiation effects are not statistically different from zero. This unfounded fear of radiation must be fought, as it causes more harm than good.