Comparison of Animal Infectivity and Excystation As Measures of Giardia Muris Cyst Inactivation by Chlorine

Overview

Journal Appl Environ Microbiol

Specialties Environmental Health
Microbiology

Date 1985 Oct 1

PMID 4083876

Citations 13

Authors

J C HOFF

E W Rice

F W Schaefer 3rd

Affiliations

Soon will be listed here.

Abstract

In this study, in vitro excystation and mouse infectivity were compared as methods for quantitatively determining the viability of Giardia muris cysts before and after exposure to free residual chlorine. The mouse infectivity results show that very few cysts (1 to 15) constitute an infectious dose. The results of the inactivation studies indicate that in vitro excystation is an adequate indication of G. muris cyst infectivity for the host and can be used to determine the effects of disinfectants on cyst viability.

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