This manual is designed as a resource for trainers who provide preservice training, either in-country or state-side, to health specialists and generalists assigned to health projects at the community and clinical levels. The training is intended to assist the volunteer in developing knowledge and skill in the areas of primary health care and the complementary skills, knowledge, and attitudes necessary to work cooperatively with others. This volume contains the final three modules. Each module begins with a set of behavioral objectives and contains a sequence of sessions that address the specific context area. Each session follows this format: total time, overview, objectives, list of resources, a list of required materials, and procedures (a series of steps to follow to meet the objectives) with accompanying trainer notes. Handouts for trainees and trainer attachments (trainer resources) follow most sessions. Module titles (and representative session titles) are nutrition (recognizing malnutrition, breastfeeding and weaning, preventing malnutrition); maternal and child health (pregnancy and prenatal care, high risk pregnancy, well baby care); and diseases in the developing world (recognition of immunizable diseases, transmission of immunizable diseases, disease prevention and control, dehydration assessment, rehydration therapy, treatment and prevention of endemic diseases). A 134-item bibliography is attached. (YLB)