Protection from this shingles vaccine lasts about 5 years, so adults vaccinated before they are 60 years old might not be protected later in life when the risk for shingles and its complications are greatest.
arbor vitae - Latin for tree of life : 1. A 17 th century literary euphemism for the penis . See penis for synonyms. 2. In anatomy, the branching ridges and folds within the cervix of the uterus.
White matter works with the central nervous system to send signals between different parts of the body, and gray matter processes information from the central nervous system. The arbor vitae consists of white matter that allows communication between different parts of the brain.