For decades, the term that many people use when referring to a stomach illness that causes nausea, vomiting and diarrhea, is “stomach flu”. But what is the stomach flu? Is it related to influenza? Is it different from a “stomach bug”? The “stomach flu” is not a real...

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...