University of Virginia Patent Foundation

Jay E Purdy

William A Petri

Barbara J Mann

R Randolph Vines

The invention provides methods for expressing foreign genes in enteric protozoa. This transfection system was established using a gene ligated to the 5' and 3' flanking DNA regions of a protein-encoding gene from an enteric protozoa. The present invention also provides such transformed enteric protozoa, vaccines produced therefrom and foreign or altered proteins expressed in the same. The ability to introduce and express genes in amebae will now permit both genetic analysis and modification of the virulence of this organism, which remains a serious threat to world health and will facilitate basic research towards the control of this parasite.

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Charlottesville, VA, United States of America

Jay E Purdy