The Effect of Cold Temperatures on the Viability of Cysts of Endamoeba Histolytica

Bernard Halpern Parmly Research Laboratory, Department of Medicine, Northwestern University Medical School

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Ralph E. Dolkart Parmly Research Laboratory, Department of Medicine, Northwestern University Medical School

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Summary

In vitro observations demonstrate that (1) temperature levels of -15°C. or lower for twenty-four hours or longer are required to produce complete loss of viability of E. histolytica cysts; (2) significant reduction in viability is attained at temperature levels of -10°C.

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