SeroTracker synthesizes findings from thousands of seroprevalence studies worldwide, providing a data platform and interactive dashboard for pathogen serosurveillance.

Confirmed cases are just the tip of the iceberg - they undercount the true number of infections because people may have asymptomatic infections or lack access to diagnostic testing. In contrast, seroprevalence studies measure antibodies against a particular pathogen in the population. Because people with these antibodies have been previously infected or vaccinated, these studies are crucial to understanding the true extent of a pandemic and in measuring population antibody levels.

SeroTracker is supported by the

through the

. SeroTracker is also hosted at the

.

SeroTracker is working with the

to visualize and synthesize results from the

. SeroTracker and the World Health Organization are grateful for German Federal Ministry of Health (BMG) COVID-19 Research and Development funding to support this effort.

supports SeroTracker's mapping infrastructure.

ArboTracker data was collected through a systematic review of published arbovirus seroprevalence studies in collaboration with partners at the

at the Colorado School of Public Health and Heidelberg University Hospital. The search feeding the current dashboard was conducted on March 13, 2023. Data was extracted by researchers at Heidelberg University for each source's estimate(s) and certain relevant subgroups. Additional relevant data was extracted by researchers at SeroTracker. Full methods are available in

.

We produce data for both academic and public use on our dashboard. In May 2024 we updated our search strategy to capture additional data, which will be added to the dashboard in the coming months. A PROSPERO record with a citation can be found

. For further information beyond the following high-level summary, please see our

for a detailed explanation of our research processes.

The ArboTracker work for the initial systematic review was supported by the

(Reconciliation of Cohort Data for Infectious Diseases). The ReCoDID project has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement No. 825746 and was supported by the

(CIHR-IG) under Grant Agreement No 01886-000.

For all SeroTracker inquiries (including to support our efforts, collaborate with us, or if you are a journalist interested in reporting on our findings), please contact Mairéad Whelan at

, Harriet Ware at

, and Niklas Bobrovitz at

.

To make us aware of new arbovirus seroprevalence studies or arbovirus studies that we have not yet captured, please fill out

For SARS-CoV-2 submissions, please use

- however please see our FAQ for our frequency of data updates for this dataset.