As weather is changing ,we are preparing for summer...
Now it is time for stomach flu, means if we are not careful our children will fall prey to summer infections..
Best to keep our hands clean and consume freshly prepared food.
For young kids, main reason for stomach flu is poor bottle hygiene .. 
First of all, bottles are not required after 6 months of age (few mothers start bottle feeding with an impression that their baby will not accept bottle later on).
Beyond Six months of age, use sippers...
Use good quality of Glass Bottles, if you are still bottle feeding your child...
Do steam sterilisation as boiling in hot water is not sufficient and good for bottle health...
Change bottle nipples frequently...
Use boiled water for preparing milk as milk powder is not sterilised than cool it after mixing.
Even RO water should be used after boiling for making milk..
Remember all summer infections come suddenly and take long to recover...
So prepare yourself and have a healthy, pleasant and fun-filled summer ...