Up to 9000 excess cancer deaths may result from the Chernobyl nuclear disaster among those who worked in the cleanup operation, evacuees, and residents of contaminated regions in Belarus, the Russian Federation, and Ukraine, according to a report the WHO released in April (http://www.who.int/ionizing_radiation/chernobyl/who_chernobyl_report_2006.pdf). The report also noted that about 5000 people who were children and adolescents at the time of the disaster have been diagnosed with thyroid cancer and that new cases are likely to be reported in the future.
Stephenson J. Chernobyl’s Legacy Probed. JAMA. 2006;295(19):2240. doi:10.1001/jama.295.19.2240-d