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.
The minimal clinical reactivity reported in this trial confirms our previous experience with the vaccine. 13. The vaccine was shown to be highly immunogenic in healthy children between the ages of 1 and 14 years. Over 94 per cent of the vaccine recipients had detectable varicella antibody eight weeks after vaccination.