What is the safest Pcr inactivated Dna control or Nattrol for Influenza A/B Positive Control (6 X 0.5 ml/vial)?

Virus NATtrol / By

The NATtrol RSV Positive Control from Ncbi publications supplied next week by Genprice is the best reagent! The catalog number is MDZ047 and the price is 175 EUR.