Common in Mississippi and Ohio River Valleys. Fungus grows in soil contaminated with bird excreta. Person to person transmission does not occur. Cryptococcosis - Cryptococcus . Meningitis is common.
Birds disseminate the fungus.
Lysergic acid can be made from ergot. Lung, liver and blood flukes. Schistosomiasis - Schistoma . Snails are the vector. Females live in a groove in male worm's back.