ACIP recommends routine vaccination of all persons aged >60 years with 1 dose of zoster vaccine. Persons who report a previous episode of zoster and persons with chronic medical conditions (e.g., chronic renal failure, diabetes mellitus, rheumatoid arthritis, and chronic pulmonary disease) can be vaccinated unless those conditions are contraindications or precautions. Zoster vaccination is not indicated to treat acute zoster, to prevent persons with acute zoster from developing PHN (post-herpetic neuralgia), or to treat ongoing PHN. Before routine administration of zoster vaccine, it is not necessary to ask patients about their history of varicella (chickenpox) or to conduct serologic testing for varicella immunity.