Holding on to the Science of Nutritional Immunology when illnesses are unexplainable

Last Sunday 11/09, my little 6 year old boy had a mild fever of 37.5-37.8c for a day. As his temperature went back to normal the next day, I wasn't so concerned thinking it was just one of those casual bug attacks. He didn't go to school as I wanted to monitor him for a day. Interestingly, things took a turn which I did not expect.