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.
1 Adding heat energy to water increases the motion of the water molecules and the molecules of food coloring. 2  The faster-moving molecules cause the food coloring to mix into the water faster. 3  The water molecules and food coloring molecules in cold water donât move as quickly as in hot water.