Children, even those that are vaccinated, may develop rotavirus disease more than once. That is because neither natural infection with rotavirus nor rotavirus vaccination provides full immunity (protection) from future infections. Usually a personâs first infection with rotavirus causes the most severe symptoms.
Because molecules move quicker at higher temperature, causing them to collides more. Since they collides more, reaction occurs to be a lot faster to. And that's why things dissolve quicker in hot water than in room temperature water.
Warmer temperatures cause the water molecules to have a higher amount of kinetic energy and will therefore produce a higher frequency and magnitude of collisions between water molecules. This leads to a faster rate of evaporation. Boiling water will evaporate at a faster rate because of the same reason. At a lower atmospheric pressure, less energy is needed by the water molecules to escape into the atmosphere. Therefore more molecules at the water surface will be able to reach the required energy level and evaporation will occur at a faster rate.