Wax Moth Larvae infestation… Gross!!!!

We had 4 boxes of drawn comb stored in our house with 1/2 cup of moth crystals on the inside top of the highest box. It was covered and there were no ‘leaks’.  Several weeks later, we needed a few frames and were so disappointed to find that 50% were infested with hundreds of wax moth larvae (large and small) along with live moths and cocoons everywhere!! It was disgusting!