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Division of Communicable Disease Control

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Valley fever

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Data and Publications

Valley fever (also called cocci​dioidomycosis or “cocci”) is a reportable disease in California, which means healthcare providers and laboratories that diagnose a case of Valley fever must report it to their local health department. The California Department of Public Health (CDPH) uses data on Valley fever cases to track trends and better understand who is affected by Valley fever.

Data and Publications

CDPH provides two types of surveillance updates on reported Valley fever cases in California: (1) provisional monthly updates and (2) final year-end updates. Data are provided in dashboard and report formats. ​

Dashboards​​

Provisional Valley Fever Data Dashboard

Updated monthly – Includes data from 2023–2025*

*As of May 31, 2025

    Contains provisional data on the number of suspect, probable, and confirmed Valley fever cases reported so far in the current year with comparisons to data from previous years. Provisional numbers are subject to change in final year-end reports.

Year-end Valley Fever Data Dashboard

Updated yearly – Includes data from 2001–2023*

*As of June 18, 2024

    Interactive overview of Valley fever cases and rates in California by year, location, and demographic group.

  

Surveillance Reports


Final Year-end Reports

    Contain data on the final number of confirmed Valley fever cases reported each year, including county, monthly, and demographic breakdowns.

  •         Epidemiologic Summary of Valley Fever (Coccidioidomycosis) in California, 2022 (PDF, 1.5MB)
  • Contains data from 2016–2022

  •           Epidemiologic Summary of Valley Fever (Coccidioidomycosis) in California, 2020–2021 (PDF, 1.9MB)
  • Contains data from 2015–2021

  •            Yearly Summary of Coccidioidomycosis in California, 2012–2020 (PDF, 3.3MB)
  • Contains data from 2012–2020

  •            Epidemiologic Summary of Valley Fever (Coccidioidomycosis) in California, 2019 (PDF, 1.9MB)
  • Contains data from 2013–2019

  •            Epidemiologic Summary of Coccidioidomycosis in California, 2018 (PDF, 1.4MB)
  • Contains data from 2011–2018

  •            Yearly Summary of Coccidioidomycosis in California, 2001–2010 (PDF, 5.4MB)
  • Contains data from 2001–2010

Other Publications

2019–2020 Valley Fever Awareness Campaign Summary Report

    In 2019–2020, CDPH developed and launched an evidence-based, multimedia Valley Fever Awareness Campaign. For a summary report of the campaign, please view the Campaign Executive Summary.

  • Valley Fever Awareness Campaign, 2019–2020 Executive Summary (PDF)
  • January 2021

CDPH also periodically publishes more focused Valley fever reports in journals, including surveillance summaries, analyses of hospital and death data, and reports summarizing Valley fever outbreaks. See below for some of CDPH’​s Valley fever publications:

  • Association between wildfires and coccidioidomycosis incidence in California, 2000–2018: a synthetic control analysis (published 2023)

  • Effects of precipitation, heat, and drought on incidence and expansion of coccidioidomycosis in western USA: a longitudinal surveillance study (published 2022)

  • Notes From the Field: Coccidioidomycosis Outbreak Among Wildland Firefighters — California, 2021
    (published 2022)

  • Coccidioidomycosis Outbreak Among Inmate Wildland Firefighters: California, 2017 (published 2021)

  • Regional Analysis of Coccidioidomycosis Incidence — California, 2000–2018 (published 2020)

  • Valley Fever (Coccidioidomycosis) Awareness — California, 2016–2017 (published 2020)

  • Surveillance for Coccidioidomycosis — United States, 2011–2017 (published 2019)

  • Coccidioidomycosis Outbreak among Workers Constructing a Solar Power Farm — Monterey County, California, 2016–2017 (published 2018)

  • Notes from the Field: Increase in Coccidioidomycosis — California, 2016 (published 2017)

  • Coccidioidomycosis-Associated Deaths in California, 2000–2013 (PDF) (published 2016)

  • Coccidioidomycosis-Associated Hospitalizations, California, USA, 2000–2011 (published 2013)

  • Coccidioidomycosis among Workers Constructing Solar Power Farms, California, USA, 2011–2014
    (published 2015)

Learn More

  • Valley Fever Basics

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Page Last Updated : June 24, 2025
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