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 the frequent passing of loose, watery stools. Water plays a large role in the onset of diarrhea. It can be caused by drinking contaminated water or by the body absorbing too much water. Diarrhea is caused by increased water in stool. Bacteria can inflame the intestine, making food pass through faster, leading to less time for the absorption of water. Bacteria can also stimulate the lining of the small intestine, causing it to secrete fluid.