BIOL 134 Lecture Notes - Lecture 40: Pinworm Infection, Intestinal Parasite Infection, Stool Test
Document Summary
Can grow up to be a foot long and can live in a host for 1-2 years. Ingestion of eggs from contaminated food, water, soil. Larvae burrow into the intestinal wall, enter the bloodstream. Coughed up larvae are swallowed, re-infecting the intestines. Some symptoms from physical presence of worms. Severe cases may lead to intestinal rupture, death. Heavy infections can lead to coughing, pneumonia. Most common helminthic infection: 1. 5 billion people worldwide. Estimated 4 million infected individuals in the united states. Small worms that infect the lower intestines. At night, worms exit the anus and deposit eggs on the skin. Thousands of eggs deposited nightly, high risk of transmission to other family members or kids at school. Stick a piece of tape against the skin around the anus. Clothes, bedsheets, etc. must be washed with hot water to eliminate all the. More common in temperate regions than tropical. Much smaller than ascaris, but have teeth!
