The chickenpox vaccine is a shot that can protect nearly anyone who receives the vaccine from catching chickenpox. It's also called the varicella vaccine, because chickenpox is caused by the varicella-zoster virus. The vaccine is made from a live but weakened, or attenuated, virus. Viruses that have been attenuated are less virulent than viruses that are not.
The term whole grain refers to a variety of grains, including wheat, corn, rice, oats and rye, which are still in their natural form. Whole grains have a bran, germ and endosperm. To be considered a whole grain, the entire grain must still be intact and not just the endosperm, as is the case in refined grains.
The Whole-Grain Difference. Not only does oatmeal provide complex carbohydrates, but it's a type of whole grain and is therefore more nutritious than refined grains such as corn flakes and white bread. Whole grains contain the bran, germ and endosperm of the grain, whereas refined versions only contain the endosperm.