It is very common for preschool children to get repeated virus infections. It is unusual that your 3 year old is not at a creche.Does he have an older sibling at school or does he attend a play school some days of the week?The immune systems of young children have to adjust to the many types of viruses that they come across on a daily basis.It would be a good idea to ask your doctor to test your son's immunoglobulin levels. In particular he should have his IgA, IgG and IgG subclass tests done to see if these are normal. If they are you can be confident that your son will outgrow this 'frequent infection' stage by the time he starts going to school.
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