Just to share my experience, I've brought my baby for vaccination when he's having flu.
We brought him to the polyclinic for his vaccines. We informed the nurse that he's having runny nose and cough, so the nurse arranged us to consult the doctor before the vaccine. The doctor said the same thing, as long as there's no fever it's ok to go ahead with the vaccination. My baby is totally fine after the vaccination.
As what Jacq had mentioned, it's really if you are uncomfortable with it, you can defininately postpone to a later date.
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