From an article in The Wall Street Journal: “A study by researchers in Fukushima prefecture found 57 minors in the prefecture have been diagnosed with thyroid cancer so far and another 46 are showing symptoms that suggest they may also have the disease.
Thyroid cancer can be caused by exposure to radiation, but it’s unclear whether the number is linked to the Fukushima Daiichi nuclear accident in March 2011 because the rate of thyroid cancer in the general population isn’t fully known.