{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T16:36:09Z","timestamp":1791909369650,"version":"4.3.4"},"reference-count":18,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2009,4,6]],"date-time":"2009-04-06T00:00:00Z","timestamp":1238976000000},"content-version":"unspecified","delay-in-days":5178,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[1995,2]]},"abstract":"<jats:title>SUMMARY<\/jats:title><jats:p>Isoenzyme typing was used to study a number of oocyst isolates of<jats:italic>Cryptosporidium parvum<\/jats:italic>from different geographical locations and of human or animal origin. All isolates showed identical enzyme motility when glucose phosphate isomerase (GPI; 23 isolates tested) or lactate dehydrogenases (LDH; 20 isolates tested) was assayed. However, two isoenzyme forms were observed with phosphoglucomutase (PGM; 9 animal isolates showed one form, while 8\/9 human isolates showed a second form) and hexokinase (HK; 4 human isolates showed one form and 6 animal isolates showed a second form). Thus, PGM and HK each exhibit 2 isoenzymes corresponding to 2 parasite populations associated with separate hosts. The data from this study, plus supportive evidence obtained by different methods and by independent researchers, lend support to the hypothesis that separate cycles of transmission of<jats:italic>C. parvum<\/jats:italic>may exist within human and animal hosts.<\/jats:p>","DOI":"10.1017\/s0031182000063885","type":"journal-article","created":{"date-parts":[[2009,6,5]],"date-time":"2009-06-05T13:50:45Z","timestamp":1244209845000},"page":"129-132","source":"Crossref","is-referenced-by-count":61,"title":["Differentiation between human and animal strains of<i>Cryptosporidium parvum<\/i>using isoenzyme typing"],"prefix":"10.1017","volume":"110","author":[{"given":"F. M.","family":"Awad-El-Kariem","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H. A.","family":"Robinson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. 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