Blue-green Algae
High severityEnvironmentalAlso known as: Cyanobacteria
A toxin produced by cyanobacteria in warm, stagnant water. Exposure can be rapidly fatal; treat any suspected case as an emergency.
Reported on ParvoMaps
Symptoms to watch for
- Vomiting and diarrhea
- Drooling
- Weakness or collapse
- Seizures or tremors
- Difficulty breathing
How it spreads
Drinking, swimming in, or licking fur after contact with contaminated water.
Prevention
Keep dogs out of scummy, discolored, or foul-smelling water; rinse immediately after exposure.
Recent reports
Frequently asked questions
What are the symptoms of Blue-green Algae in dogs?
Common signs include Vomiting and diarrhea, Drooling, Weakness or collapse, Seizures or tremors, Difficulty breathing. Signs vary by dog and stage — contact your veterinarian if you notice them.
How do dogs catch Blue-green Algae?
Drinking, swimming in, or licking fur after contact with contaminated water.
How can I prevent Blue-green Algae in dogs?
Keep dogs out of scummy, discolored, or foul-smelling water; rinse immediately after exposure.
Is Blue-green Algae dangerous to dogs?
Blue-green Algae is considered high severity. A toxin produced by cyanobacteria in warm, stagnant water. Exposure can be rapidly fatal; treat any suspected case as an emergency.
Educational information only — not veterinary advice. If you think your dog is sick, contact your veterinarian.