Contained in this package are all data related to the publication titled: Retrospective Wastewater Tracking of Measles Outbreak in Western Switzerland in Winter 2024. DOI: https://doi.org/10.1021/acs.estlett.5c00244 Keywords: Measles, Wastewater surveillance, Digital PCR, Outbreak detection, and Strain differentiation Included are all raw data used for generating plots and figures for the measles wild type and vaccine duplex in the report titled: Wastewater-based surveillance for measles, mumps, and rubella in Switzerland published for the FOPH. This package contains dPCR experiments and their corresponding excel files. This package also contains code associated with the data. If only excel data and code is of interest, please download the folder titled ***"ExcelDataForDuplexMeaslesWTVAPublication.zip"*** . Please start by downloading and reading the README file.