This preview shows page 1. Sign up to view the full content.
Unformatted text preview: → consumed by animals → hatch → larvae encyst in muscles (meat). Hookworm infections - Necator americanus Life Cycle: Eggs passed in feces → hatch in moist soil → free living larvae → burrow thru skin feet, legs → blood vessels → lungs → coughed up, swallowed → intestine → mature into adults → burrow head into intestinal wall - feed on blood. Causes abdominal pain, loss appetite, protein and iron deficiencies (anemia). Pinworms - Enterobius vermicularis Life Cycle: Eggs ingested, inhaled → hatch in small intestine → mature and reproduce in large intestine - male & female mate → gravid females migrate to perianal region during night to deposit eggs on skin. Causes itching, irritation in area. Eggs easily spread to family members - all are treated. Reinfections common....
View Full Document
This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.
- Fall '09