Public health surveillance is the ongoing collection, analysis and dissemination of health related data to provide information that can be used to monitor and improve the health of populations. Such surveillance systems can be established in many settings to study a variety of populations and conditions. The most effective systems are designed around specific, well-defined objectives, collect data in a standardized fashion, analyze the data frequently and disseminate the results to those who need to know the information.Surveillance has been used to determine the occurrence rates of hemophilia and to characterize the population affected by this rare but potentially serious congenital disorder. Data from surveillance systems have been used to identify risk factors for complications that, once identified, have been modified through public health interventions. The effectiveness of these interventions can be assessed by continued surveillance, thereby assuring improvement in care of people affected by hemophilia around the world.
KeywordsSurveillance; data collection; hemophilia; comprehensive care; public health Public health surveillance is traditionally defined as the ongoing systematic collection, analysis, and interpretation of health data, essential to the planning, implementation, and evaluation of public health practice, closely integrated to the dissemination of these data to those who need to know and linked to prevention and control [1].The components of public health surveillance are ongoing data collection, regular and frequent data analysis and the provision of the results of these analyses to those who need to know. The data collected in such systems typically include demographic, socioeconomic and clinical characteristics of the population under surveillance, data on key outcomes such as disease complications and mortality, and data on potentially mitigating or aggravating behaviors or co-morbid conditions referred to as risk factors.Contact Information. J.