Epidemiology
Pigs are the natural host for T. suis, but it can also affect other species - including people. Humans probably become infected with T. suis by ingesting contaminated soil or water. T. suis is found worldwide, but is most prevalent in warm, humid climates. It is rare or nonexistent in arid, very hot, or very cold regions.
Read more about this topic: Trichuris Suis