title: Biological dosimetry assessments of a serious radiation accident in Bulgaria in 2011.
abstract: In 2011, a serious radiation accident occurred in Stamboliyski, Bulgaria, in an industrial sterilisation facility using very-high-activity (60)Co sources. For the five persons accidentally exposed, biological dosimetry based on dicentric analysis was performed in Sofia and in Paris, where the patients were transferred for treatment. Before completing the chromosomal dose assessment, and for the most exposed person, a preliminary cytogenetic evaluation based on electronically transmitted metaphase images was made. The averaged acute whole-body dose estimates for the five patients ranged from 5.2 to 1.2 Gy, and good agreement was obtained between the two laboratories. The patients were also assessed by their prodromal responses and depressed blood cell counts over the first week. The cytogenetic dose estimates were in good accord with those derived from the blood counts, and both techniques indicated that, for the two most seriously exposed persons both techniques indicated that the initial prodromal reactions had suggested somewhat less severe exposure.
authors: Institut de Radioprotection et de Sûreté Nucléaire, Fontenay aux Roses, France.
authors: E
authors: E
authors: Grégoire
authors: V
authors: V
authors: Hadjidekova
authors: R
authors: R
authors: Hristova
authors: G
authors: G
authors: Gruel
authors: S
authors: S
authors: Roch-Lefevre
authors: P
authors: P
authors: Voisin
authors: A
authors: A
authors: Staynova
authors: S
authors: S
authors: Deleva
authors: E A
authors: EA
authors: Ainsbury
authors: D C
authors: DC
authors: Lloyd
authors: J F
authors: JF
authors: Barquinero
mesh_terms: D000328:Adult; D000368:Aged; D002031:Bulgaria; D002869:Chromosome Aberrations; D003037:Cobalt Radioisotopes; D004307:Dose-Response Relationship, Radiation; D005260:Female; D005720:Gamma Rays; D006801:Humans; D008214:Lymphocytes / Q000528:radiation effects; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D018788:Radioactive Hazard Release; D011874:Radiometry / Q000295:instrumentation / Q000379:methods*
chemical_list: D003037:Cobalt Radioisotopes