Nematodes, strongyloides, and amoebas, all like moist mud. Amoebas can enter the body including the brain through swimming in contaminated warm water swimming holes, hot mud baths and enter through mucous membranes or ruptured ear drums, Stongyloides most likely through open sores and ingestion, nematodes might enter through unwashed vegetables, and open sores, but mud and dirt are most likely to harbor these parasites.
