Data: The One Health Harmful Algal Bloom System (OHHABS)

Overview

Data collected through the One Health Harmful Algal Bloom System (OHHABS) helps CDC and partners better understand harmful algal blooms and prevent associated human and animal illnesses.

OHHABS is a CDC surveillance system launched in 2016. State and territorial health departments and their designated environmental health or animal health partners can voluntarily report data to OHHABS.

Keep Reading: Participate in One Health Harmful Algal Bloom System (OHHABS)

OHHABS collects data on:

  • Human illnesses
  • Animal illnesses
  • Harmful algal bloom events that occur in fresh, brackish, or salt waters

Find OHHABS data by year in the reports below.

Data reports

Summary Report – One Health Harmful Algal Bloom System (OHHABS), United States, 2022
Data summary of the 2022 One Health Harmful Algal Bloom System Report.
Summary Report – One Health Harmful Algal Bloom System (OHHABS), United States, 2021
Data summary of the 2021 One Health Harmful Algal Bloom System report.
Summary Report – One Health Harmful Algal Bloom System (OHHABS), United States, 2020
Data summary of the 2020 One Health Harmful Algal Bloom System report.
Summary Report – One Health Harmful Algal Bloom System (OHHABS), United States, 2019
Data summary of the 2019 One Health Harmful Algal Bloom System report.
Surveillance for Harmful Algal Bloom Events and Associated Human and Animal Illnesses — One Health Harmful Algal Bloom System, United States, 2016–2018
MMWR. Morbidity and Mortality Weekly Report / Vol. 69 / No. 50 / P. 1889–1894
2016–2018 One Health Harmful Algal Bloom System (OHHABS) Report: Supplemental Tables and Figures
Supplemental tables and figures of the 2016-2018 One Health Algal Bloom System Report.
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