1. :Herpes Zoster is caused exclusively by the varicella zoster virus. 2. A : The medical name for the chickenpox virus is varicella zoster. 3. He was also the first to isolate the virus responsible for varicella . 4. Those causing latent infection include herpes simplex and varicella -zoster viruses. 5. Ninety percent of cases of varicella pneumonia occur in the adult population. 6. Perhaps a childhood case of varicella zoster, parotitis or scarlet fever? 7. Outcome after maternal varicella infection in the first 20 weeks of pregnancy. 8. The varicella vaccine may also protect against shingles, a painful nerve condition. 9. In pediatric patients varicella inflammation may be followed by vasculitis of intracranial vessels. 10. Population-based immunization against varicella is not otherwise practised in the UK.