Categories twitter twitter-es twitter-pt RT @WHO: The #measles vaccine has been in use for over 50 years. It is 💪🏽 safe 💪🏽 effective 💪🏽admin - 16:34, 13 de enero de 2019488 0 RT @WHO: The #measles vaccine has been in use for over 50 years. It is 💪🏽 safe 💪🏽 effective 💪🏽 inexpensive. #VaccinesWork https://t.co… 0