Giardiasis in day care centers.
D002648:Child; D002656:Child Day Care Centers; D002675:Child, Preschool; D003967:Diarrhea / Q000382:microbiology; D004196:Disease Outbreaks / Q000517:prevention & control*; D005872:Giardia / Q000302:isolation & purification; D005873:Giardiasis / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening