Varicella- zoster- virus, Oka/ Merck- stamme, (levende, attenueret) ≥19400 PFU * * PFU = Plaqueformende enheder
Varicella-zoster virus, Oka/ Merck strain, (live, attenuated) ≥ 19400 PFU* *PFU = Plaque-forming units