Comparison of Levels of Inactivation of Two Isolates of Giardia lamblia Cysts by UV Light-Reference-Cited by-同舟云学术

Comparison of Levels of Inactivation of Two Isolates of Giardia lamblia Cysts by UV Light

Published:2007-04 Issue:7 Volume:73 Page:2218-2223
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Li Dong¹,Craik Stephen A.¹,Smith Daniel W.¹,Belosevic Miodrag²

Affiliation:

1. Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2W2

2. Department of Biological Science, University of Alberta, Edmonton, Alberta, Canada T6G 2E9

Abstract

ABSTRACT The effects of 254-nm UV irradiation on two human isolates (WB and H3) of Giardia lamblia cysts were assessed using a collimated beam protocol and a Mongolian gerbil model. The levels of infection of cysts in the gerbils were assessed based on the presence of cysts in feces and the presence and activity of trophozoites in the small intestine of inoculated gerbils. The results suggest that there were differences in the infectivities of the WB and H3 isolates, as well as in susceptibilities of the parasites to UV light. Without UV exposure, gerbils were more readily infected by isolate H3 cysts. After UV exposure of the cysts, however, the gerbils were more susceptible to isolate WB cysts.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.02024-06

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