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.
yes because the heat gives then energy allowing the particles to move faster, or it works the other way around, if cooled the particles get less energy so they move around a lot less. that is why when water is heated it turns into a gas because the particles are spacing out and turning into a gas.