<p>You CAN ask your doctor to run a varicella titre (blood test for Chicken Pox) that will come back overnight to ensure immunity if your son/daughter had the disease as a child. SOMETIMES immunity wanes enough that it will show negative. That would mean another shot on I-Day if you wait until then and one to follow it 6 months later. With proof of two shots, you don’t have to get a titre. </p>
<p>Always remember that with vaccines, there is no “too long” between shots in a series, but they CAN be given “too soon” (less than the recommended interval). These shots would be disqualified and have to be repeated as if you never had them.</p>
<p>Marine2Bdad, MD</p>