title: A pseudo-outbreak of cryptosporidiosis.
authors.affiliation: PHLS Cryptosporidium Reference Unit, Glan Clwyd Hospital, Rhyl.
authors.forename: D P
authors.initials: DP
authors.lastname: Casemore
mesh_terms: D016477:Artifacts; D001431:Bacteriological Techniques; D003457:Cryptosporidiosis / Q000175:diagnosis* / Q000453:epidemiology*; D003951:Diagnostic Errors; D004196:Disease Outbreaks; D005243:Feces / Q000469:parasitology; D006801:Humans