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..
Viruses (e.g., adenovirus, astrovirus, rotavirus, Norwalk virus) are the most common cause of diarrhea in the United States. The most common ones in children are rotavirus and in adults are norovirus. Escherichia coli, Clostridium difficile, and Campylobacter, Salmonella, and Shigella spp. are common bacterial causes.
Diarrhea is characterized by loose, watery stools or a frequent need to have a bowel movement. It usually lasts a few days and often disappears without any treatment. Diarrhea can be acute or chronic. Acute diarrhea occurs when the condition lasts for one to two days. You might experience diarrhea as a result of a viral or bacterial infection. Other times, it could be due to food poisoning.