Zoonotic endoparasites and Toxoplasma gondii seropositivity in free-roaming cats from New York City, USA — data and code

De-identified individual-level dataset (n = 87 free-roaming cats trapped through the Long Island University College of Veterinary Medicine TNR program, New York City, May–July 2023) and the complete R analysis pipeline accompanying: Nguyen V-L, Gurtowski E, Chen J, Rosen M, Kafle P. Zoonotic endoparasites and Toxoplasma gondii seropositivity in free-roaming cats (Felis catus) from New York City, USA. PLOS ONE (in revision, 2026). Manuscript ID: PONE-D-26-00846. Contents: cats_parasite_dataset.csv (per-animal de-identified data), analysis.R (reproduces all prevalence estimates, risk-factor results, and intensity models in Tables 1 and 2), data_dictionary.md (variable definitions), LICENSE (CC-BY 4.0 for data; MIT for code) Sampling-site coordinates have been rounded to two decimal places (~1.1 km grid) before public release to protect free-roaming-cat colony caretakers; un-rounded coordinates are available from the corresponding author for reasonable scientific requests, subject to caretaker permission. Figure 1 (sampling map) was prepared in QGIS 3.34 from public-domain shapefiles overlaid with OpenStreetMap Standard and CARTO Positron basemap tiles; the figure file itself is uploaded with the manuscript and is not redistributed in this archive.