The REMAPORC is an epidemiosurveillance network in swine diseases and an organizational model for local veterinary services in one district of Northern Vietnam. A strong concern was done on quality of the sanitary information chain from field and feedback to local agents. Based on 4,000 declarations provided by veterinarians and animal health workers involved, preliminary results highlighted the major incidence of porcine respiratory disease complex; digestive affections in piglets, and reproductive disorders in newly raised exotic sows have been also noticed.