I don't think that any were sickened from radiation. The increases found were quite small, and would not cause any radiation sickness. You need dose rates thous

I don't think that any were sickened from radiation. The increases found were quite small, and would not cause any radiation sickness. You need dose rates thousands of times higher than what was reported to get radiation sickness. From https://www.bbc.com/news/science-environment-60528828 https://www.bbc.com/news/science-environment-60528828: Prof Claire Corkhill, a nuclear materials expert from Sheffield University, told the BBC the spike was "quite localised" and there had been increases along the main routes in and out of the zone around the reactor. "The increased movement of people and vehicles in and around the Chernobyl zone will have kicked up radioactive dust that's on the ground," Prof Corkhill said. "Provided there's no further movement, it should decrease again over the next couple of days." But any military activity in the zone is concerning.