Which of the following diseases are potentially carried by wastewater?

The diseases that are potentially carried by wastewater are primarily those that are transmitted through the fecal-oral route, which includes typhoid fever, dysentery, and cholera.

Typhoid fever is caused by the bacteria Salmonella typhi, which can spread through contaminated food and water. Similarly, dysentery, which is often associated with bacteria such as Shigella and pathogens like Entamoeba histolytica, also spreads through fecal contamination. Cholera is caused by the bacterium Vibrio cholerae, which is transmitted through contaminated water supplies, particularly in places with inadequate sanitation.

The other options listed contain diseases that are generally transmitted through respiratory droplets or direct contact rather than being associated with contaminated water or sewage. Understanding the routes of transmission is crucial for septic pumper professionals, as they deal with wastewater that may contain a variety of pathogens, specifically those mentioned in option C.