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Applied and Environmental Microbiology, September 2007, p. 5663-5666, Vol. 73, No. 17
0099-2240/07/$08.00+0     doi:10.1128/AEM.00504-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Physical Inactivation of Toxoplasma gondii Oocysts in Water{triangledown}

Katlyn E. Wainwright,1 Manuel Lagunas-Solar,2 Melissa A. Miller,1,3 Bradd C. Barr,1,4 Ian A. Gardner,5 Cecilia Pina,2 Ann C. Melli,1 Andrea E. Packham,1 Nolan Zeng,2 Tin Truong,2 and Patricia A. Conrad1*

Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, California 95616,1 Chemistry and Agriculture Program, Crocker Nuclear Laboratory, University of California, Davis, California 96515,2 Marine Wildlife Veterinary Care and Research Center, California Department of Fish and Game, Santa Cruz, California 95060,3 California Animal Health and Food Safety Laboratory, University of California, Davis, California 95616,4 Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, California 956165

Received 5 March 2007/ Accepted 27 June 2007

Inactivation of Toxoplasma gondii oocysts occurred with exposure to pulsed and continuous UV radiation, as evidenced by mouse bioassay. Even at doses of ≥500 mJ/cm2, some oocysts retained their viability.

* Corresponding author. Mailing address: Department of Pathology, Microbiology and Immunology, 1 Shields Avenue, School of Veterinary Medicine, University of California, Davis, CA 95616. Phone: (530) 752-7210. Fax: (530) 752-3349. E-mail: paconrad{at}ucdavis.edu

{triangledown} Published ahead of print on 6 July 2007.

Applied and Environmental Microbiology, September 2007, p. 5663-5666, Vol. 73, No. 17
0099-2240/07/$08.00+0     doi:10.1128/AEM.00504-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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Copyright © 2007 by the American Society for Microbiology. All rights reserved.