Close Why vaccines are so important Dr. Russell Libby of Inova Children's Hospital talks about why school vaccines are cruical to overall public health. WUSA 11:32 AM. EDT August 13, 2014 JOIN THE CONVERSATION To find out more about Facebook commenting please read the Conversation Guidelines and FAQs Leave a Comment TRENDING VIDEOS Inside the chaos: Police release Las Vegas body cam footage FEMA takes back thousands in hurricane aid money Men risked their lives to save Maryland woman in Vegas shooting WARNING: GRAPHIC VIDEO Dramatic video of Las Vegas concert shooting Md. woman loses eye, in coma after Las Vegas massacre FBI profiler: Vegas shooting similar to Texas Tower massacre Allegations of racism, favoritism at PGPD prompt DOJ investigation Woman on a mission to clean up community-one cart at a time Tuesday night weather webcast Father of local shooting victim talks about daughter's call from hospital More Stories Survivors of Maryland office shooting in critical condition Oct 19, 2017, 9:21 a.m. Mysterious human remains found in Chesapeake Bay town Oct 18, 2017, 10:49 p.m. Peace Cross in Bladensburg ruled unconstitutional Oct 19, 2017, 7:20 a.m.