Typhoid fever is an illness that many people have heard of, but few know too much about beyond the name. Typhoid, also called enteric fever, is an illness caused by the salmonella bacteria. It’s very uncommon in places like the United States, where water is treated...

Giardia lamblia, also known as giardia duodenalis, is a microscopic protozoan flagellate that can cause a range of gastrointestinal symptoms, from severe diarrhea to malabsorption. According to the CDC, it is the most common cause of waterborne outbreaks of diarrhea...