I, along with my partner and 13 year old daughter tested positive for the sars-cov-2 virus. however, our 3 year old son is negative. what are the best ways to protect him and also help my familys immune system to fight the virus?

Isolation: The best way to keep him healthy is to have him stay with relatives while you quarantine yourselves. Drink lots of fluids, get lots of rest, stay active, and eat healthy foods. Most persons without underlying conditions and persons under 14 will not have any complications. See a Dr if you develop breathing difficulty, persistent chest pain, blue lips or new onset confusion/lethargy.