Cryptosporidiosis, the leading cause of endemic and epidemic diarrhoeal disease worldwide is due to Cryptosporidium parvum, a spore-forming protozoan. Anticryptosporidial pharmacological and/or immunological agents were initially tested in immunodeficient models of cryptosporidiosis, and sinefungin exhibited a significant dose dependent curative and preventive activity. Shedding relapses observed after discontinuation of sinefungin therapy lead to identify the bile ducts as a protected reservoir that may sustain chronic infection.
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