MONROVIA, Liberia ? The United States and Britain will send medical equipment and military personnel to help contain West Africa's Ebola outbreak, as the World Health Organization warned Monday that many thousands of new infections are expected in Liberia in the coming weeks. The current Ebola outbreak is the largest on record. It has spread from Guinea to Sierra Leone, Liberia, Nigeria and Senegal and killed more than 2,000 people. An exponential increase in new cases is expected in the hardest-hit countries in coming weeks, the U.N. health agency warned. As soon as a new Ebola treatment facility is opened, it immediately fills to overflowing with patients, pointing to a large but...