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
1
All time
1
Last 7 days
1
Last 30 days
Top states
TX
1
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
Austin, TXJun 10, 2026
Educational information only — not veterinary advice. If you think your dog is sick, contact your veterinarian.