The toxins produced by harmful algal blooms more readily affect pets than humans. If you and your pet swim in a water body when a toxic bloom is present, you may show no symptoms while your pet can become ill and die within a matter of hours after swallowing the toxins. Always keep pets and livestock away from water if you see signs of a bloom such as scum or changes in water color. If your pets come into contact with the water, immediately rinse them off with clean water to keep them from licking cyanobacteria off of their fur. Call your veterinarian if your pet shows any of the following signs: loss of energy/appetite, vomiting, stumbling and falling, foaming at the mouth, diarrhea, convulsions, excessive drooling, tremors and/or seizures.