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.
A spell of it often consists of loose, watery bowel movements that come on suddenly and leave you hesitant to be far from a bathroom. Typically, diarrhea occurs due to a virus, such as the stomach flu, in the digestive system, lasting no more than a few days. However, long-term or frequent affliction can indicate other chronic diseases within the large intestine. Here are the ten most common causes of diarrheaâ¦.