title: A familial infection of giardiasis.
mesh_terms: D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D005873:Giardiasis / Q000235:genetics* / Q000635:transmission; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000235:genetics* / Q000635:transmission