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Harmful Algal Bloom (HAB)-Associated Illness

Posters

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Download and use the posters below to raise awareness about harmful algal blooms.

To order FREE printed copies, visit CDC Publications On Demand. Choose “Harmful Algal Blooms” on the dropdown menu next to “Program.”

Avoid getting sick
Stay out of lakes and rivers if you see scum or changes in water color.

English
8.5×11 [PDF – 553 KB] | 11×17 [PDF – 412 KB]

Spanish
8.5×11 [PDF – 477 KB] | 11×17 [PDF – 411 KB]

Going in water with cyanobacteria (blue-green algae) can make you sick.

English
8.5×11 [PDF – 629 KB] | 11×17 [PDF – 388 KB]

Spanish
8.5×11 [PDF – 796 KB] | 11×17 [PDF – 667 KB]

You can’t always see harmful cyanobacteria (blue-green algae).

English
8.5×11 [PDF – 539 KB] | 11×17 [PDF – 193 KB]

Spanish
8.5×11 [PDF – 1 MB] | 11×17 [PDF – 2 MB]

Keep animals safe
Cyanobacterial blooms can be deadly for pets and livestock.

English
8.5×11 [PDF – 993 KB] | 11×17 [PDF – 2 MB]

Spanish
8.5×11 [PDF – 1 MB] | 11×17 [PDF – 2 MB]

Cyanobacteria, (blue-green algae), can be deadly for dogs.

English
8.5×11 [PDF – 765 KB] | 11×17 [PDF – 436 KB]

Spanish
8.5×11 [PDF – 712 KB] | 11×17 [PDF – 1 MB]

Keep pets safe near lakes and rivers

English
8.5×11 [PDF – 346 KB] | 11×17 [PDF – 544 KB]

Cyanobacteria (blue-green algae) can be deadly for farm animals.

English
8.5×11 [PDF – 1 MB] | 11×17 [PDF – 464 KB]

Spanish
8.5×11 [PDF – 1 MB] | 11×17 [PDF – 466 KB]

Last Reviewed: October 17, 2023
Source: Centers for Disease Control and Prevention
homeHarmful Algal Bloom-Associated Illnesses
  • General Informationplus icon
    • Avoid Harmful Algal Blooms
  • Illness and Symptomsplus icon
    • Freshwater Cyanobacterial Blooms
    • Saltwater Algal Blooms
  • Protect Yourself and Pets
  • Exposure
  • Causes and Ecosystem Impacts
  • Communication Resourcesplus icon
    • Fact Sheets
    • Posters
    • Graphics
    • Social Media Toolkit
    • Partner Toolkit
  • Information for Specific Groupsplus icon
    • Animal Owners
    • Healthcare Providers
    • Veterinarians
    • Poison Center Professionalsplus icon
      • Cyanobacterial Blooms
      • Marine HABs
  • Publications, Data, and Statistics
  • One Health Harmful Algal Bloom System (OHHABS)plus icon
    • About OHHABS
    • Using OHHABS
    • Dataplus icon
      • 2021 Data
      • 2020 Data
      • 2019 Data
      • 2016-2018 Data
  • CDC at Work: HABsplus icon
    • Building Public Health Capacityplus icon
      • Florida Success Stories
      • Michigan Success Stories
      • Oregon Success Stories

 

Healthy Water Sites
  • Healthy Water
    • Drinking Water
    • Healthy Swimming
    • Water, Sanitation, & Environmentally-related Hygiene
    • Global WASH
    • WASH-related Emergencies & Outbreaks
    • Other Uses of Water