A gemstone is any rock or mineral that could be used for ornamentation or jewelry. Gemstones usually are minerals prized for their color, beauty, rarity, and endurance. Most often, the minerals are cut and polished to bring out the natural beauty of the piece.
The varicella vaccine is a live (attenuated) virus administered to protect against the viral disease commonly known as chickenpox caused by the varicella zoster virus (VZV).he varicella vaccine is marketed as Varivax in the U.S. by Merck and globally as Varilrix by GlaxoSmithKline.
Note: Born in the U.S. before 1966 is presumptive evidence of varicella immunity, with or without a history of having had chickenpox. â¢ Two doses of varicella vaccine are needed for persons through age 59 years of age. â¢ Dose #2 of varicella vaccine should be given 4-8 weeks after dose #1.