Related Experiment Video
Updated: Mar 13, 2026

Obtaining Highly Purified Toxoplasma gondii Oocysts by a Discontinuous Cesium Chloride Gradient
Published on: November 3, 2009
Toxoplasma gondii as a Parasite in Food: Analysis and Control
Dolores E Hill1, Jitender P Dubey1
1U.S. Department of Agriculture, Agricultural Research Service, Northeast Area, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center-East, Beltsville, MD 20705.
Abstract:
Foodborne infections are a significant cause of morbidity and mortality worldwide, and foodborne parasitic diseases, though not as widespread as bacterial and viral infections, are common on all continents and in most ecosystems, including arctic, temperate, and tropical regions. Outbreaks of disease resulting from foodstuffs contaminated by parasitic protozoa have become increasingly recognized as a problem in the United States and globally. Increased international trade in food products has made movement of these organisms across national boundaries more frequent, and the risks associated with infections have become apparent in nations with well-developed food safety apparatus in place.

