In 1994 the Armed Forces Radiobiology Research Institute published a contract report entitled "Analysis of Chronic Radiation Sickness Cases in the Population of the Southern Urals." The principal author of both reports was Dr. Mira M. Kossenko of the Urals Research Center for Radiation Medicine (URCRM, formerly Branch 4 of the Institute of Biophysics of the Ministry of Health of the USSR). The first report documented the extent of radiation exposure along the Techa river and gave an overview of the health effects of this exposure on the population. There were 940 individuals diagnosed with CRS; of this large group, 66 met the criteria of a dose of at least one gray received over three years, no concurrent disease with symptoms similar to CRS, and signs and symptoms as described by Guskova and Baysogolov. In this report the dynamics of CRS, its clinical course, and the long-term outcomes for patients with this disease are described in much greater detail. Once the patient was removed from exposure, the course of CRS stabilized. Most patients eventually recovered, with the time to recovery being inversely related to the total dose received. Severity of symptoms was directly related to dose. A significantly increased percentage of patients died from leukemia or other blood dyscrasias and solid tissue neoplastic diseases compared to a control group. However, except for early deaths resulting from malignancies, there was no life span shortening. Today there are no patients who have CRS; all have either recovered completely (the majority), at least stabilized, or have died.
AFRRI Contract Report 98-1; DNA001-95-C-0156