The board of commissioners may appropriate money annually to nonprofit associations or corporations that provide for:
(1) community nursing services for the elderly and other needy persons;
(2) the control of communicable disease;
(3) the immunization of children;
(4) the operation of child health centers; or
(5) instructive visits to parents of new babies beginning in the prenatal period and family health guidance, including nutrition and detection and correction of defects.