Source: Med. Trop. J. Am. Hyg. (United States) p 315-320 Publication Date: Mar 1987 Document Type: Journal Article Language: English Journal Announcement: ERA8705 ERA (Energy Research Abstracts); Subfile: (National Library of Medicine) INS v2. AJTHA Coden: NLM (US Atomindex input). Country of Origin: United States Abstract: Nearly universal serologic evidence of Toxoplasma gondii infection was found to have occurred by adulthood in 517 Marshallese tested in 1981-1982. The prevalence and incidence of retinal lesions compatible with toxoplasmosis were 3.9% and 273 cases/year/100, 000 seropositive persons, respectively, thus indicating a significant public health problem. Seronegativity was significantly more common in a subgroup of Marshallese that had received 110-190 rads of total-body gamma radiation as a consequence of accidental exposure to radioactive fallout in 1954. Despite this finding there was no evidence of an increase in clinically significant lesions in exposed persons. Major Descriptors: *ANTIBODIES -- RADIOINDUCTION; *PARASITIC DISEASES -ANTIBODIES; *RETICULOENDOTHELIAL SYSTEM -- BIOLOGICAL RADIATION EFFECTS Descriptors: FALLOUT; GAMMA RADIATION; HUMAN POPULATIONS; IMMUNITY; MARSHALL ISLANDS;: PARASITES; RETINA; SENSE ORGANS DISEASES; WHOLE-BODY IRRADIATION Broader Terms: ANIMAL TISSUES; BIOLOGICAL EFFECTS; BODY; BODY AREAS; DISBASES; ELECTROMAGNETIC RADIATION; EXTERNAL IRRADIATION; EYES; FACE; HEAD; INFECTIOUS DISEASES; IONIZING RADIATIONS; IRRADIATION; ISLANDS; MICRONESIA; OCEANIA; ORGANS; POPULATIONS; RADIATION EFFECTS; RADIATIONS ; SENSE ORGANS; TISSUES Subject Categories: 560151* -- Radiation Effects on Animals -- Man 560161 -- Radionuclide Effects, Kinetics, & Toxicology -- Man INIS Subject Categories: C1500* -- Effects of External Radiation on Man C2110 -- Radioisotope effects, kinetics & toxicology in man 10/5/473 01961496 (Item 173 from file: Author(s): J.I. EDB-87-089161 Henry, T.W.; Wardlaw, 103) B.R.; Skipp, B.; Major, R.P.; Tracey, Title: Pacific Enewetak Atoll Crater Exploration (PEACE) program, Enewetak Atoll, Republic of the Marshall Islands. Part 1. Drilling operations and descriptions of boreholes in vicinity of KOA and OAK craters Corporate Source: Geological Survey, Denver, CO (USA) Publication Date: 1986 p 836 Report Number(s): AD-A-176634/4/XAB Document Type: Report Language: English Journal Announcement: Availability: NTIS, ERA8705 PC A99/MF E04. Subfile: ERA (Energy Research Abstracts). GRA (NTIS NTS) Country of Origin: United States Country of Publication: United States Abstract: From mid-1984 through mid-1985, the United States Geological Survey engaged in an investigation of two craters formed from high-yield, near-surface nuclear bursts at Enewatak Atoll. The craters studied, KOA and OAK, resulted from 1.4- and 8.9-megaton, near-surface bursts detonated near the northern perimeter of the Enewetak lagoon on May 12 and June 28, 1958, respectively. At that time, Enewetak was a part of the Pacific Proving Grounds (PPG). OAK and KOA are among the only high- yield nuclear explosion craters available for studies of cratering processes and crater-related effects. program were: structuresj (1) The objects of this to identify major crater dimensions, morphology, (2) to provide a data base for material-properties, and shock-metamorphic, and other types of related studies; and (3) to gain a better understanding of both the process that formed the excavational crater and that altered that initial feature to its present form. These 9003171