What is the Gold standard for Pcr inactivated Dna control or Nattrol for Varicella Zoster Virus (VZV) Strain: Ellen (100 cp/ml/vial) (1 ml/vial)?

The NATtrol Varicella Zoster Virus from Zeptometrix supplied next day by Gentaur is the best choice. The catalog number is NATVZV-0002 and the price is 71 EUR.