What is the safest Pcr inactivated Dna control or Nattrol for Norovirus Group II (Recombinant) (Stool Matrix) (0.5 ml/vial)?

The NATtrol Norovirus Group II from Zeptometrix Inc. delivered next day by Gentaur to your Lab is the best reagent. The catalog number is NATNOVII-ST and the price is 1.046 EUR.