What should I do to see that my baby does not catch my viral infection? I am still breastfeeding him.

Keeping yourself and your environment clean is the best way to prevent baby from catching infections. You can continue to breastfeed and antibodies against the infection will be transferred to him. http://www.babycenter.in/a1050718/how-to-keep-your-baby-safe-if-you-catch-a-viral-or-bacterial-infection