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Stability of Tritrichomonas foetus

Hale S, Norris JM, Slapeta J: Prolonged resilience of Tritrichomonas foetus in cat faeces at ambient temperature, Vet Parasitol 166:60, 2009.

This study, from the University of Sydney, Australia, was designed to investigate two culture methods for Tritrichomonas foetus, and to evaluate the effect of sample storage time on diagnostic utility. The two culture methods evaluated were InPouch TF-Feline (Bio-Med Diagnostics) and Modified Diamond’s Medium. Two batches of normal cat feces were spiked with T. foetus prior to being stored either at room temperature or refrigerated. At different time points, small samples were taken from the original batches and tested in the culture systems. Both culture systems performed well. The accumulative sensitivity was found to be 83% and 100% for the InPouch TF-Feline and Modified Diamond’s Medium respectively over a 6 hour period. The researchers were able to successfully culture T. foetus from feces that had been stored at room temperature for 24 hours. This finding may indicate that the environmental resilience of the organism may be more robust than previously thought, and that transmission may not be limited to close contact between cats. [SL]
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Related articles:
Tolbert MK, Gookin J: Tritrichomonas foetus: A New Agent of Feline Diarrhea, Compend Contin Educ Vet 31:374, 2009.
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Stockdale HD, Givens MD, Dykstra CC et al: Tritrichomonas foetus infections in surveyed pet cats, Vet Parasitol 160:13, 2009.
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