Origin and Etymology of is. Middle English, from Old English; akin to Old High German ist is (from sÄ«n to be), Latin est (from esse to be), Greek esti (from einai to be)
For the medical journal, see Menopause (journal). Menopause, also known as the climacteric, is the time in most women's lives when menstrual periods stop permanently, and they are no longer able to bear children. Menopause typically occurs between 49 and 52 years of age.
On October 18, 2007, FDA approved expanding the age range for Menactra, a bacterial meningitis vaccine, to include children ages 2 to 10 years. The vaccine was first approved by FDA in January 2005 for people ages 11 to 55 years. Until now, Menomune was the only meningococcal vaccine available in the United States for use in children ages 2 and older. Menactra and Menomune are manufactured by sanofi pasteur Inc. of Swiftwater, Pa.