Cholera is one of the most feared of infectious diseases, and with very good reason – cholera can cause such extreme dehydration from diarrhea and vomiting that it can cause a person’s death literally within hours.

Travelers from North America can easily become ill with hepatitis if they travel to Central or South America, Africa, the Middle East, India, China and other Far Eastern countries, and some Eastern European nations.

In broad terms, emerging contaminants can be defined as synthetic or naturally occurring chemicals or as any type of microorganism that is not currently or commonly monitored.