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.
Things dissolve slower in cold water because cold water doesn't have a lot of energy. There for, if it were warm water, it would have a lot of energy, and it would dissolve fa â¦ ster. Think of a hurricane, it is made of warm energy that comes from the ocean. 10 people found this useful. Paul Kissane.