Investigate the ecology of poultry respiratory diseases and their role in poultry flocks The new NC project will continue to build upon the foundation laid during previous NC projects. In the new NC project, state representatives will gather disease surveillance information from each state and share the data among participating institutions in annual meetings looking for further collaboration. A standardized data reporting system will be developed. Since the state representatives and other participants are actively involved in key national committees related to poultry diseases, the NC project will serve by gathering, discussing, and providing critical information on disease status at the state and national level which will help to identify research priorities and develop prevention strategies for the researchers, industry and state and federal government officials. This effort is obviously based on mutually beneficial, collaborative, multi-disciplined approaches among participants and collaborators in state and government agencies. The established surveillance efforts will continue to be coordinated and reassessed as needed at annual meetings and via e-mail communication. In addition to proposed surveillance plan described below, efforts will be made to monitor new or re-emerging respiratory pathogens as needed.