| implementing poultry vaccination and biosecurity at the village level in tanzania: a social strategy to promote health in free-range poultry populations. | a social strategy was tested for implementing newcastle disease (nd) vaccination and biosecurity improvements among free-ranging chicken at village level in tanzania. in addition to training the local poultry vaccinators, data recorders and poultry-keepers, the strategy involved training and empowering leaders at the district, ward and village level. the trainings covered poultry health, management, and marketing of village chickens, with an emphasis on nd vaccination and improving biosecurity a ... | 2010 | 19688307 |