Cryptosporidium parvum is a correct etiologic agent to explain a part of the gastrointestinal findings.
What were the key clues to this choice?
This gastrointestinal findings are due, in
part, to this protozoan parasite infection typically seen
in immuno-compromised individuals!
Treatment: Mr. Paul Potter was treated with thiabendazole (50 mg/kg/day b.i.d. for 5 days)."