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Volume 3, Number 4—December 1997

Dispatch

Genetic Polymorphism Among Cryptosporidium parvum Isolates: Evidence of Two Distinct Human Transmission Cycles

Michael M. Peng*, Lihua Xiao†, Amanda R. Freeman†, Michael J. Arrowood†, Ananias A. Escalante†, André C. Weltman‡, Corinne S.L. Ong¶, William R. Mac Kenzie†, Altaf A. Lal†, and Charles B. Beard†
Author affiliations: *The University of Michigan, Ann Arbor, Michigan, USA; †Centers for Disease Control and Prevention, Atlanta, Georgia, USA; ‡Pennsylvania Department of Health, Harrisburg, Pennsylvania, USA; and ¶University of British Columbia, British Columbia, Canada

Main Article

Table 1

Cryptosporidium parvum isolates examined

Isolate Implicated source Host Ref.
Maine,1993 apple cider human 16
Wisconsin, 1993 drinking water human 3
Wisconsin, 1996 drinking water human *
Georgia (day care),1995 person-to-person human *
Georgia (water-park), 1995 recreational water human 17
Florida, 1995 drinking water human 18
British Columbia, 1996 drinking water human 15
Texas, 1996 unknown human *
Pennsylvania, 1997 bovine contact human, calf *

*Reference is this article.

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