Drugs versus Biologics. 1  A biologic is manufactured in a living system such as a microorganism, or plant or animal cells. 2  Most biologics are very large, complex molecules or mixtures of molecules.enerics Drugs versus Follow-On Biologics. 1  To be approved as a generic, a drug must have the same active ingredient, strength, dosage form, and route of administration as the reference drug, and it must also be bioequivalent..
Acute watery diarrhea is most commonly seen with traveler's diarrhea caused by enterotoxigenic E. coli (ETEC), parasite-induced diarrhea from Giardia and Cryptosporidium spp. and, in cases of food poisoning (ingestion of preformed toxins), from B. cereus and S. aureus.
Bloody and watery diarrhea: Salmonella, Campylobacter, Yersinia. These bugs are (or can be) invasive. Watery diarrhea: Certain strains of E. coli (like ETEC), and Vibrio cholerae. Campylobacter may also cause watery diarrhea, especially in infants. These bugs do not invade (campylobacter is capable of either invading, and causing bloody/watery diarrhea, or not invading, and causing just watery diarrhea). The bugs listed above are the most important ones for you to remember â either because they are the most common, or because they are the most dangerous.