Cyanobacteria-Danger Lurking Under the Water.

Cyanobacteria are very common organisms found in most of the freshwater in the Northwest. Some may be familiar with the organism’s more common name, blue-green algae. Under normal circumstances, blue-green algae are relatively harmless. However, under certain environmental conditions the blue-green algae begin producing rather rapidly. While the algae bloom, toxins are produced. These toxins are called cyanotoxins.

These toxins can cause permanent damage to the liver and nervous system, and even death if not treated rapidly. Symptoms of toxicity include but are not limited to: weakness, numbness, excessive drooling, staggering, fainting, convulsions, nausea, cramping, diarrhea, vomiting, and skin irritation when exposed to an algae bloom. If infection is suspected, seek medical attention immediately.

Cyanotoxins cannot be detected by the naked eye, but the appearance of brightly colored foam is a decent indication of tainted water. Additionally, if a bloom has been detected, health committees will issue a blue-green advisory for certain bodies of water. Currently, Cougar Reservoir (Eugene) and Lost Creek Lake (Medford) have been issued advisories. The season for algae blooms is not over. Be sure to stay informed on algae blooms before planning a trip to the river, lake, or pond with your children and pets. If your dog has come into contact with tainted water, rinse him immediately and do not let him lick his fur. Seek veterinary care if symptoms become present. For additional information, contact the Harmful Algae Bloom Surveillance Program at (971) 673-0400 or Emilio DeBess, OHA-Public Health Veterinarian, at (971) 673-1111.