| Description: |
An introduction to medical parasitology. According to the World Health Organization, 3.5 billion people suffer from some type of parasitic infection. Not all of these people live in third world countries; many in the developed world have any number of parasitic infections, some of which are so highly contagious that only casual contact can infect a person. Symptoms may vary depending on the type and amount of infestation. The worms may go undetected for years with no apparent symptoms, or they may be seen in the stool. |