MCHD shares simple steps to prevent stomach bugs this summer, monitors national increase in “explosive diarrhea” from cyclosporiasis 07-02-26

July 2, 2026

MCHD shares simple steps to prevent stomach bugs this summer, monitors national increase in “explosive diarrhea” from cyclosporiasis

MOBILE, Ala. — The Mobile County Health Department (MCHD) is reminding residents that many “stomach bugs” – such as diarrhea, vomiting, and cramps – are caused by germs that spread through contaminated food, water, and unwashed hands.

These enteric pathogens include bacteria such as Salmonella, Campylobacter, and Shiga toxin-producing E. coli (STEC); viruses such as norovirus and rotavirus; and parasites such as Giardia, Cryptosporidium, and Cyclospora. These germs can cause serious illnesses, particularly among young children, older adults, pregnant people, and individuals with weakened immune systems.

MCHD is also actively monitoring an increase in “explosive diarrhea” cases reported in the United States. These cases are the result of cyclosporiasis, an intestinal disease caused by the microscopic parasite Cyclospora.

“No recent cases of cyclosporiasis have been reported in Mobile County. However, MCHD continues to monitor local, state, and national surveillance data and remains prepared to investigate any reported cases and clusters in our area,” said Dr. Tommie Walker IV, Epidemiologist and Director of Data Analytics and Epidemiology at MCHD. “While we have not seen recent cases of cyclosporiasis in Mobile County, the national increase is an important reminder to practice food safety and seek medical care when symptoms are severe or persistent.”

Cyclospora, like other enteric pathogens, is generally spread when people consume contaminated food or water. The infection is most often characterized by frequent episodes of watery and explosive diarrhea. Other symptoms include abdominal cramps, bloating, nausea, fatigue, loss of appetite, and weight loss.

“Most foodborne and waterborne illnesses are preventable with a few simple habits,” said Dr. Kevin Michaels, MD, MPH, Health Officer for Mobile County. “We want families to enjoy cookouts, travel, and time at the pool without an unexpected trip to the doctor.”

Keep food safe: Clean, Separate, Cook, Chill

MCHD encourages residents to follow the Centers for Disease Control and Prevention’s “Clean, Separate, Cook, Chill” approach whenever preparing food at home, at picnics, or during community events.

• Clean – Wash hands with soap and water for at least 20 seconds before preparing food, after handling raw meat, after using the bathroom, and before eating.
• Wash cutting boards, utensils, and counters with hot, soapy water, and rinse fresh fruits and vegetables under running water.
• Separate – Keep raw meat, poultry, seafood, and eggs away from ready-to-eat foods such as salads, fruits, and breads to avoid cross-contamination.
• Cook – Use a food thermometer and cook foods to safe internal temperatures; burgers, poultry, and leftovers should be cooked thoroughly to kill harmful germs.
• Chill – Refrigerate leftovers promptly; do not leave perishable foods out for more than two hours, or more than one hour when outdoor temperatures are above 90°F.

Handwashing: your best everyday defense

Hands are a major way that gastrointestinal germs spread from person to person and onto food. Proper handwashing with soap and running water for at least 20 seconds can prevent a substantial portion of diarrhea-related illnesses. Alcohol based hand sanitizer (at least 60 percent alcohol) is helpful when soap and water are not available, but it does not remove all types of germs or visible dirt. MCHD recommends:

• Washing hands after using the restroom, changing diapers, helping someone who is sick, handling animals, or cleaning up after pets
• Reminding children to wash and dry their hands thoroughly before eating and after outdoor play
• Food workers and volunteers at community events follow strict handwashing and glove use policies when preparing or serving ready-to-eat foods

When to call your doctor

Most mild stomach illnesses can be managed at home with rest and fluids, but some symptoms require prompt medical attention. Residents should contact a healthcare provider if they experience bloody diarrhea, high fever, signs of dehydration, or diarrhea lasting more than a few days. People who think they became ill after eating at a restaurant, attending a catered event, or large gathering are encouraged to report it so public health officials can investigate and prevent others from becoming ill.

“MCHD is here to help keep our community safe and healthy,” Dr. Michaels added. “If you are concerned about illness after eating or drinking, please reach out to your healthcare provider or to our team so we can provide guidance and, when needed, investigate.”

For more information about protecting your family from foodborne and waterborne illnesses, visit the Mobile County Health Department at www.mchd.org or the Alabama Department of Public Health at https://www.alabamapublichealth.gov/foodsafety/mfp/food-safety.html.