In an apocryphal new testament-ish book called the Gospel of Peace the story of Jesus sending the lepers to bathe in the Jordan River was much more detailed. He makes it very clear that every symptom that had was from parasites. Stood there with them all day showing them how to use fasting, sunlight exposure, soil (ivermectin is from soil), and swimming (exercise, not just bathing), along with warm water enemas to rid themselves of them and cure their own maladies. Came across one with such a large worm that after he completed the whole regimen and was still in pain, Jesus built a fire and heated up some milk, which, after waving the fumes next to the face of the man writhing in pain, a giant now starving tapeworm slithered up his stomach and out of his mouth in search of it. Then Jesus stepped on its head and killed what he specially referred to as “Satan.”