title: Simple focus assay for Encephalitozoon cuniculi.
abstract: In this is vitro infectivity assay for Encephalitozoon cuniculi, lesions due to the organism appeared as macroscopically distinct foci. The number of such foci was used as a direct measure of the number of infectious units in the original sample. The expected correlation between focus-forming units and 50% infectious doses was observed in limit dilution experiments.
mesh_terms: D002460:Cell Line; D056890:Eukaryota / Q000254:growth & development*; D006801:Humans; D014059:Tongue