Reports of gastrointestinal illnesses can be especially concerning during periods of extreme heat. Parasitic infections that cause diarrhea can lead to significant fluid loss, and when combined with hot weather, the risk of dehydration increases.
However, it’s important to separate verified public health information from sensational or satirical social media posts. If you see claims about a “parasite outbreak,” check updates from your local or state public health department for confirmed information.
What Are Intestinal Parasites?
Intestinal parasites are organisms that live in the digestive tract and can cause illness. Common parasites include:
- Giardia
- Cryptosporidium
- Cyclospora
- Entamoeba histolytica
These parasites can spread through contaminated food, contaminated water, or close contact with infected individuals.
Common Symptoms
Symptoms may appear a few days to several weeks after exposure and can include:
- Watery diarrhea
- Frequent bowel movements
- Abdominal cramps
- Nausea
- Vomiting
- Bloating
- Excess gas
- Fatigue
- Loss of appetite
- Mild fever (sometimes)
Symptoms vary depending on the specific parasite and the person’s overall health.