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註釋This manual aims to assist trainers to enable farmers to become successful community vaccinators against ND. The manual focuses on the use of freeze-dried vaccine applied with via eye drop. Controlling Newcastle disease (ND) in village chickens can make a significant and positive contribution to the lives of people in rural areas. To ensure that ND is controlled in a way that will be least expensive to farmers, it is important that farmers themselves learn how to vaccinate chickens against the disease and how to raise their chickens in a way that is more likely to keep them healthy.