11. Varicella can be lethal to adults with impaired immunity.12. Disseminated primary varicella infection usually seen in the immunocompromised may have high morbidity. 13. Shingles is caused by varicella zoster virus ( VZV ), an dermatome. 14. Merck is the only U . S . maker of varicella and MMR vaccines. 15. The varicella virus remains dormant in nerves. 16. Some other viruses that can infect the eye include Herpes simplex virus and Varicella zoster. 17. Varicella is highly communicable, with an infection rate of 90 % in close contacts.18. "Immunologic Evidence of Reinfection with Varicella -Zoster Virus " Journal of Infectious Diseases. 19. Http : / / www . cdc . gov / ncidod / srp / varicella . htm 20. Monkeys that had been inoculated intratracheally with SVV developed diffuse varicella 10 to 12 days later.
