Study links Fukushima nuclear disaster to thyroid cancer in children

A child is screened for radiation exposure.
(Image credit: Twitter.com/TorontoStar)

Researchers in Japan say that children living near the Fukushima nuclear plant have been diagnosed with thyroid cancer at a rate 20 to 50 times that of children in other places.

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"This is more than expected and emerging faster than expected," lead author Toshihide Tsuda told The Associated Press. Since the nuclear meltdowns in 2011, most of the 370,000 children living in the Fukushima prefecture have had ultrasound checkups, with the most recent statistics released in August showing 137 children have confirmed or suspected thyroid cancer, up 25 from last year. In other areas, an estimated one or two of every million children are diagnosed with thyroid cancer annually.

Because of the Chernobyl disaster, scientists have been able to definitively link thyroid cancer in children to radiation, AP reports, and the authors dispute the government's stance that a high number of cases have been found because of constant monitoring. Scott Davis, a professor in the Department of Epidemiology at the Seattle-based School of Public Health, said the study has a lack of individual-level data to estimate actual radiation doses. While that data is needed, David J. Brenner, professor of radiation biophysics at Columbia University Medical Center says, the higher thyroid cancer rate in Fukushima is "not due to screening. It's real."

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When treated, thyroid cancer is rarely fatal in children, but they will always have to take medication. The study will be published in the November issue of Epidemiology.

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Catherine Garcia, The Week US

Catherine Garcia is night editor for TheWeek.com. Her writing and reporting has appeared in Entertainment Weekly and EW.com, The New York Times, The Book of Jezebel, and other publications. A Southern California native, Catherine is a graduate of the University of Redlands and the Columbia University Graduate School of Journalism.