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 varicella vaccine is a shot that can prevent chickenpox. It is called varicella because the varicella virus causes chickenpox. Up to 90% of people who receive the vaccine will not get chickenpox.People who get chickenpox after having the vaccine have a milder form of the disease.t is most common in children. Most cases occur in people who are younger than 15 years of age. Chickenpox is usually a mild illness, but it can cause problems such as brain swelling, pneumonia and skin infections. Some children get sicker than others. Chickenpox may be a very serious illness in infants and adults.