Examining the use of serosurveillance approaches to monitor diseases and conditions and inform policy decisions

During the COVID-19 pandemic, serosurveillance became a useful tool to understand disease outbreak dynamics, track disease transmission and immunity, and guide policy decision-making. To prepare for future disease outbreaks and maximize the health investments made in serosurveillance, it is important to assess the serosurveillance approaches that have been used to monitor diseases and conditions and inform policy decisions. This rapid evidence profile addresses the questions: 1) How are serosurveillance approaches structured and used to monitor diseases and conditions and inform public-health decisions?; 2) What are the features of existing national or sub-national serosurveillance approaches?; and 3) How are COVID-19 serosurveillance approaches in other countries being adapted?