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.
The solubility of solids in water increases as the temperature goes  up and decreases as the temperature goes down. That means as the  water gets hotter, you can dissolve moâ¦re sugar, salt, etc. in it.  The cooler water gets, the less you an dissolve in it.