hello all. is it possible to have a scattered systematic pinworm infection ? or is it always a scattered strongyloides stercoralis or Ascaris lumbricoides infection ? what is the difference between the scattered pinworms and the other two infections ? i was also wondering how exactly the albenza and ivermectin kills them. i know its by starving and paralyzing them but does it go through the bloodstream ? how does it reach the body systematically ? thank you !