Source: Bacteria found in sewage-contaminated lakes and other water
Symptoms: Sudden, severe and bloody diarrhea. Also, fever, gas, loss of appetite, and stomach cramping. Symptoms develop 24 to 72 hours after infection.
Treatment: None. Sickness disappears in a few days.
Most cases of these illnesses are fairly mild, but some can lead to serious complications -- and very rarely, death. Being aware of the causes and signs can help you protect you, your kids, and others -- and ensure your summer fun.