Name two diseases that can be caused by untreated domestic sewage

1. Cholera: Cholera is a highly contagious and potentially life-threatening disease caused by the bacterium Vibrio cholerae. It spreads through the consumption of contaminated food or water contaminated with human fecal matter, often found in untreated domestic sewage.

2. Hepatitis A: Hepatitis A is a viral infection that primarily affects the liver. It can be transmitted through the ingestion of water or food contaminated with the feces of an infected person, which can occur when sewage is not properly treated.