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Infectious Disease

Survival and growth of Francisella tularensis in Acanthamoeba castellanii

Published in TB and Outbreaks Week, March 4th, 2003

Researchers in Sweden have identified an organsim that acts as a reservoir for Francisella tularensis.

F. tularensis "is a highly infectious, facultative intracellular bacterium which causes epidemics of tularemia in both humans and mammals at regular intervals," explained H. Abd and colleagues at the Swedish Defense Research Agency. "The natural reservoir of the bacterium is largely unknown, although it has been speculated that protozoa may harbor it."

"To test this hypothesis, Acanthamoeba castellanii was cocultured with a strain of F. tularensis engineered to produce green fluorescent protein (GFP) in a nutrient-rich...

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