sentences:  This was world class research in clinical medicine and Hope-Simpson made probably the most important clinical discovery in general practice in the 20th century.Later the virus, now known as the varicella zoster virus (VZV), was identified and isolated, and the researcher responsible (Thomas Huckle Weller) received a Nobel prize, although for his work on Polio.Later still, a therapy for herpes zoster was developed (Aciclovir) and one of the researchers, Gertrude B. Elion, too, received a Nobel prize.