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.
Varicella virus vaccine (ZostavaxÂ®) is also used for the prevention of herpes zoster (commonly known as shingles) in people 50 years of age and older. This vaccine is to be administered only by or under the supervision of your doctor or other authorized health care professional.