Geographically skewed recruitment and COVID-19 seroprevalence estimates: a cross-sectional serosurveillance study and mathematical modelling analysis.
Tyler S BrownPablo Martinez de Salazar MunozAbhishek BhatiaBridget BundaEllen K WilliamsDavid BorJames S MillerAmir M MoharebJulia ThieraufWenxin YangJulian VillalbaVivek NaranbaiWilfredo Garcia BeltranTyler E MillerDoug KressKristen StelljesKeith JohnsonDan LarremoreJochen LennerzA John IafrateSatchit BalsariCaroline BuckeeYonatan Hagai GradPublished in: BMJ open (2023)
Local geographic variation in seropositivity is an important concern in SARS-CoV-2 serosurveillance studies that rely on geographically skewed recruitment strategies. Using GPS-derived foot traffic data to select recruitment sites and recording participants' home locations can improve study design and interpretation.