First of all, don’t panic.

This recall isn’t harmful to your children; only certain batches made by one manufacturer are being recalled because they have shown to be weakening in potency.

So what should you do if you suspect your child might have been from the recalled lot?  From the CDC’s website:

Parents of children who received vaccine from the recalled lots do not need to take any action, other than to complete the two-dose immunization series if not already completed.

In other words, you don’t need to worry and you don’t need to do anything.

If only parenting were always that easy.