an evolving pattern of human hydatid disease transmission in the united states.echinococcus granulosus infection was being acquired in the contiguous united states by virginia sharecroppers and small-holders by the turn of the century. the last recorded human infection from that general area was diagnosed in 1947. by 1920 human infections were also being acquired in the lower mississippi valley. apparently, infection in both of these areas was maintained chiefly in swine. by 1940 a third transmission area definitely existed in the central valley of california, with its res ...1977329700
hydatid disease screening: sanpete county, utah, 1971-1976.between 1971 and 1976 approximately 20% (2,265) of the population of sanpete county, utah, was screened for hydatid disease (echinococcus granulosus) by intradermal, indirect hemagglutination, and bentonite flocculation tests. of 34 persons who had follow-up chest radiographs and radioisotope liver scans, 6 were found to have asymptomatic hepatic cysts. if a participant who had pulmonary cysts and negative screening tests were included, the prevalence of asymptomatic hydatid disease would be 3 p ...1978626286
echinococcus granulosus in dogs and sheep in central utah, 1971-1976.during 1971 to 1976, a survey was conducted to determine the prevalence of echinococcus granulosus infection among dogs and sheep in central utah. for each year, the number of dogs positive for adult tapeworms of the total number examined and the percentage infected were: in 1971, 14 of 51 infected (27.4%); in 1972, 13 of 46 infected (28.3%); in 1973, 7 of 36 infected (19.4%); in 1974, 34 of 244 infected (13.9%); in 1975, 13 of 267 infected (4.9%); and in 1976, 14 of 195 infected (7.2%), or a 6- ...1978637397
prevalence of echinococcus granulosus infection in dogs and sheep in central utah. 19734753408
possible factors influencing distribution and prevalence of echinococcus granulosus in utah.a descriptive epidemiologic study was designed to test an impression that infections of echinococcus granulosus in dogs, sheep, and human beings were concentrated in central utah, and to determine when and how the parasite was introduced into the state, which factors were involved in the distribution of the cestode, and which factors increased either a person's risk of infection of the number of people at risk. data were secured by review of available records, interviews, questionnaires, and fie ...19827124714
examination of commercial silver fox as a possible host for echinococcus granulosus (batsch 1786) rudolphi 1805 in salt lake county, utah. 195313084497
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