What is Zostavax?
Zostavax is a single shot vaccine that helps prevent herpes zoster, also known as the shingles. It is a weakened live form of the virus, meant to train the immune system to fight it off. Zostavax is primarily meant for individuals 50 years and older. Developed by the pharmaceutical company Merck & Company, the FDA approved it in 2006. It is a stronger version of Varivax, another shingles’ vaccine also developed by Merck.
What are the shingles?