For other uses, see Osmosis (disambiguation). Osmosis is the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
Hand, Foot, and Mouth Disease Symptoms & Signs. The symptoms of hand, foot, and mouth disease are typically mild and occur mainly in children during the spring and fall seasons. Symptoms can include fever, malaise, decreased appetite, and sore throat. A rash is characteristic of this viral disease. The rash of hand, foot, and mouth disease is most commonly observed on the palms, soles of the feet, and inside the mouth. The rash sometimes spreads to the lower calves and buttocks.
Early symptoms of hand, foot and mouth disease include a fever and sore throat, followed by sores or blisters in your mouth and on your hands and feet. The incubation period (the time between catching the disease and showing symptoms) is three to five days. During this time, the virus can be passed on.