Septic systems and Giardia intestinalis.
D001315:Australia; D002648:Child; D002675:Child, Preschool; D005873:Giardiasis / Q000635:transmission*; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000635:transmission*; D012722:Sewage / Q000009:adverse effects*
D012722:Sewage