Hard to say: Studies show the average kid experiences 5-7 respiratory and 2-3 diarrheal diseases / yr up to the age of 5. Some are less intense than others. They tend to cluster around the winter and spring.Significant immune deficiency leads to major bone and system infections by age 6 mo. Minor IgA deficiency can be hard to detect, but is not treated.
Answered 1/13/2015
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