Parasites are organisms that derive nutrition and shelter by living in or on another organism.
They live and die in the host, reproducing, along the way, assuring that there are future generations to live and die in the host and to be passed on to another host. Humans may be host to over 100 different types of parasitic organisms. Parasites are not limited by socioeconomic boundaries and are found in all climates. Besides the probability of an indigenous parasitic contamination, increased mobility, international air travel, immigration and Armed Forces personnel returning home significantly increases the likelihood of a parasitic condition. The issue is not whether you have parasites . .