A" EDT l Et Hematologica T. KUMATORI 66 each patient’s behavior on the boat. “HEM: The dose to each person differed de- pending on his behavior and the position of his cabin. The integrated dose to the thyroid from ''{ was inferred as about 20 to ukocytes -120 rads from external countings of radioactivity in the thyroid region during the 4 to 7 weeks after the initial exposure. l number of " ‘The tota out the 4th t counts at ab than 2,000. count of less Significant amounts of radioactivity were found in the urine samples collected at about 4 weeks after the explosion. The radioactivity decreased rapidly, namely at about 6 months post explosion the activity in the urine was barely detectable. ukocyte one case, the le mum e mini between thes onship was ti Similar rela . Radiochemical analysis of several organs from the fatal case showed that fisherroen revealed no significant increase. At the same time the results cf whole body counting showed nosignificant difference between fishermen and controls. Thus, the external irradiation seemed to play an impotant role in early effects. SYMPTOMS AND SIGNS IN THE EARLY STACE Figure 1 summarizes the symptoms and signs in the early stage. Y, No. 100+ 231S SOF Tre eRete a biterghee ald HAAR: ben Ue 20F = ~ headache 10; fatigue fever more Oo wea than 38°C .-" oO a a 100+ 23F \. anorexia ~s — _—— nausea *._ pla gen Lahd_voriting™ ~~~. . ” eT ~ diarrhoea - ~~” //_-. haemorrhage fer 6-10 trae wo 13-35 16-20 21-26 March wellime: Te wernt 2-6 ~7 7-11 April bets the nimal nut body and the mi s. of neutrophil s a * In most case in ea cells increased metamyt some cases, the especially with nsidera damage, 4 co end stage. Lympho yte cases. Leukoc was re eosinophilia ntinu Eosinophilia co still r ~ and one case Erythrocytes f At the time of th in : was observed » cv The Price-Jomes * epilation 27-1 doses to the estimated ch corrseponded to fcsccccce Lg i n Correlatio Fig. 2 at of normalat first, skin lesions OOF 23+ date 1-5 ~ own in F the dose as sh iin aU Ot 6NP aL on abaeed ie Wdents Seen the radioactivity of these organs was clearly higher, when compared with the controls, although it was not extremely high (Kimura et al., 1956). After 8'/2 years and 10 years, '°’Cs- and °*°Sr content in the urine of the 12-12 Fig. & 1 Symptons and signs ymp igms in in the early stage. Platelets. ete. Platelet count: e: \lost of the fish l re s st of other te « re d l in genera an on w 1. Comparis When these b