5 doubled because of the influx of relatives who had come back from other islands to live with them. These people had been away from Rongelap Atoll at the time of the accidental exposure. This group matched reasonably well for age and sex and was of comparable size. Since the return of the people to Rongelap, however, this group has about doubledin size. Since the people are of the samestock genetically, they are uniquely appropriate to serve as a comparison population and have, therefore, been used since 1957. 1961 Survey — Organization and Procedures The medical team consisted of six medical specialists, ive from the United States and one from the Trust Territory; one dentist from the Trust Territory; one Marshallese practitioner; and ten technicians, five from the United States and five from the Trust Territory ( Figure 2). The medical equipment had been sent out to the Islands prior to the team’s arrival, and pre- liminary preparations had been made forlogistic support of the operauion by the NavvPacific Misse Range group and the Holmes and Narver contractors at Eniwetok. Before the survey at Rongelap, the team visited Kwajalein and Majuro for several davs to carry out examinations on a number of Rongelap people who had moved to theseislands. The Trust Territory provided a cargoship, the M/V Roque (Figure 5), to transport the team and to serve as a base of operations. In mid-March the ship proceeded from Majuro to Eniwetok, where the medical equipmentand the 21-tonsteel room for whole-body gamma measurements(Figure 6), which was stored there, were loaded on the ship. The onloading of the latter was a difficult and exacting procedure, but was carried outremarkably smoothly by the Holmes and Narver personnel. The steel room and a wooden room to house the electronic equipment were placed in the cargo hold of the ship, and wooden stairs were installed for access into the hold. On completion of loading theship, refueling, and taking on fresh water, the team boardedthe. ship and proceeded to Rongelap. The one-day trip was quite rough, since the ship was heading into the strong prevailing trade winds, but the stee] room and equipment remained secure. The ship dropped anchor about 1000 yards off shore at Rongelap village. On arrival, an outrigger canoe camealongside the ship with the Magistrate of the village, who came aboard. The objectives of our visit to Rongelap were discussed with him, andit was considered advisable to hold a village meeting so that the proposed examinations could be explained to the people and any questions they might have could be answered. During the village meeting, held in the Council House, the medical examinations to be conducted and the reasons for them were explained. The people expressed continued concern about the effects of fallout on their health, but to no greater extent than at meetings during past surveys. As in the past, they claimedthat fish poisoning was related to the fallout, and said that certain fish have a black spot in their abdomens, which thev believe to be due to radioactivity and to cause sickness in those eating such fish. It was again explained to them that fish poisoning was in no wav related to the fallout. A new complaint was that several families had developed inflammation and blistering of the mouth and upset stomachs from eating arrowroot. vur which thevfelt was affected byfallout. It was «xplained that this type of effect has been noted in other islands when the flour is not properly prepared. They asked whether coco- nut crabs could be eaten yet and weretold that these were still not safe but that continuoustests would be carried out and that they would be informed when the crabs had reached a low enough level of contamination. This is the onlyitem in their diet which they are forbidden to eat. Another complaint was that the coconuts were small and that certain changes had been noted in the coconut and pandanustrees which they believed resulted from fallout. Despite the above complaints the people were very friendly and cooperated with the examining team in all aspects of the examination that followed. EXAMINATION FACILITIES Whole-body gamma spectroscopy wascarried out in the cargo hold of the ship. The air-condi-

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