He and his wife Susan explain that their major objectives are to prevent illness among the missionaries, and if a missionary becomes ill to help get prompt competent medical help. Another goal is to get the medical insurance of the missionaries accepted in hospitals, clinics and other medical facilities.
Dr. Hill visits hospitals and clinics in the area to establish positive working relationships with their staff because it builds bridges that assist the missionaries in times of need.
Both Elder and Sister Hill speak French and as such work with the MTC every Tuesday to assist the unendowed missionaries. In addition they come to the MTC twice every two weeks to give instruction and administer immunizations. (Source: http://www.mormonnewsroom.com.gh/article/volunteer-church-missionary-couple-helps-missionaries-maintain-health)