Liberia monitors over 150 Ebola contacts as virus re-emerges http://news.yahoo.com/liberia-monitors-over-150-ebola-contacts-virus-emerges-135253611.html;_ylt=AwrXoCBQ6FFWmWEAA0DQtDMD;_ylu=X3oDMTByMXM3OWtoBGNvbG8DZ3ExBHBvcwM4BHZ0aWQDBHNlYwNzcg--