1 Select the indented volume name of your startup disk from the left side of the Disk Utility window, then click the Erase tab. 2  If you want to securely erase the drive, click Security Options. 3  Select an erase method, then click OK. 4  From the Format pop-up menu, select Mac OS Extended (Journaled).
More than 95% of adults (aged >20 years) born in the United States have immunity to varicella, the vast majority due to primary VZV infection, known as varicella (or chickenpox). Reactivation of latent VZV results in herpes zoster (or shingles). A personâs lifetime risk for herpes zoster is 15% to 20%, with the highest incidence occurring in the elderly and immunocompromised individuals.
The zoster vaccine is, essentially, a larger-than-normal dose of the chickenpox vaccine (Varivax, Varilrix), as both shingles (prevented by Zostavax) and chickenpox (prevented by Varivax/Varilrix, even prevented by Zostavax as well) are caused by the same virus, the varicella zoster virus (VZV).he zoster vaccine is very safe; one to a few percent of people develop a mild form of chickenpox, often with about five or six blisters around the injection site, and without fever. The blisters are harmless and temporary.