An enormous amount of data now existed from what needed to be done after the accident. Full analysis of it would not be completed for a further 6 to 12 months.
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Severe cases had begun showing radiation sickness symptoms, eg vomiting, diarrhoea, skin problems within an hour of the accident. Within the first 12 hours 129 people had been sent to special hospitals.
Four degrees of radiation sickness were defined of which degree number 4 is the most severe. In category 4 there were 22 victims. They had received between 600 and 1600 rads as a result of which all but one are dead. Of the 23 victims in category 3 (400-600 rads) 7 are dead. In categories 1 and 2 (100-400 rads) there were 158 victims and 1 has died.
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