Final answer:
Gastroenteritis, also known as infectious diarrhea, is the most common disease in the United States.
Step-by-step explanation:
Gastroenteritis, also known as infectious diarrhea, is the most common disease in the United States. It is an acute and usually self-limiting infection of the GI tract by pathogens, most often viruses. Symptoms typically include diarrhea, vomiting, and abdominal pain. Gastroenteritis is very common worldwide, with up to five billion cases occurring each year and resulting in about 1.4 million deaths. In the United States, it is the second most common type of infection after the common cold.