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Tickpedia/Diseases/Undetermined ehrlichiosis/anaplasmosis/History

Year-over-year

Undetermined ehrlichiosis/anaplasmosis cases over time

1,201 reported cases across 2 years of CDC surveillance.

Year-over-year

diseaseCountyYear.casesByYear

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A field guide to ticks, the diseases they carry, and how to get them off you. Open source — MIT.

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Data

Surveillance data: CDC. Geographic centroids: US Census Bureau Gazetteer. One-liners and editorial copy: this project, with citations on every fact.

© 2026 Tickpedia contributors · MITNot medical advice — see about for the limits.