Developing an evaluation framework for public health environmental surveillance: Protocol for an international, multidisciplinary e-Delphi study

Introduction Public health environmental surveillance has evolved, especially during the coronavirus disease pandemic, with wastewater-based surveillance being a prominent example. As surveillance methods diversify and expand, it is essential to have a robust evaluation of surveillance systems. This electronic Delphi study will propose an evaluation framework for public health environmental surveillance, informed by the expanding practice of wastewater-based surveillance during the pandemic.