What is Cyclosporiasis?

Cyclosporiasis is an intestinal infection caused by the parasite Cyclospora cayetanensis. People can become infected by consuming contaminated food or water. Although anyone can become ill, elderly adults, people with chronic conditions, and patients with weakened immune systems may experience prolonged or severe symptoms.

Why is This Topic Important Now?

During the summer of 2026, U.S. public health authorities have identified a significant increase in cyclosporiasis cases and are investigating an multistate outbreak.

As of July 27, 2026, the Centers for Disease Control and Prevention (CDC) received reports of:

  • 6,707 laboratory-confirmed cases acquired within the United States.
  • Cases reported in 34 states.
  • 423 hospitalizations.
  • No deaths reported.

This issue is also relevant to Puerto Rico due to the identification of an isolated case on the Island and the close relationship with the distribution and consumption of foods imported from the U.S. market. The identification of a single case does not necessarily indicate a local outbreak; however, it reinforces the importance of recognizing symptoms, practicing safe food handling, and seeking prompt medical evaluation.

What Are the Symptoms?

Symptoms typically appear approximately one week after exposure to the parasite and may include:

  • Frequent watery diarrhea
  • Abdominal cramps or pain
  • Nausea
  • Loss of appetite
  • Extreme fatigue
  • Abdominal bloating
  • Weight loss
  • Mild fever in some cases

Without treatment, symptoms can persist for several weeks and may occur intermittently.

How Is It Transmitted?

Infection occurs primarily by consuming food or water contaminated with the parasite. Fresh produce that is typically eaten raw, such as fruits and vegetables, have historically been identified as the most common sources during outbreaks.

It is important to note that infection is not usually transmitted directly from one person to another.

How Can You Protect Yourself?

To reduce the risk of infection:

  • ✓ Wash fruits and vegetables carefully before consuming them.
  • ✓ Wash your hands with soap and water before preparing food and before eating.
  • ✓ Use safe drinking water for drinking and preparing food.
  • ✓ Maintain proper hygiene in food handling and storage.
  • ✓ When possible, cook food thoroughly.

Although these measures reduce risk, some harmful microorganisms may remain on the surface of food even after washing.

When Should You Seek Medical Attention?

Consult your doctor if you experience:

  • Persistent diarrhea for several days
  • Signs of dehydration, such as dizziness or decreased urination
  • Significant weakness
  • Inability to keep fluids down
  • Worsening of symptoms

Cyclosporiasis can be diagnosed through specific laboratory tests and can be effectively treated when diagnosed promptly.

What Matters Most

The best protection continues to be prevention. Maintaining good personal hygiene and food safety practices can help reduce the risk of infection and protect the health of you and your family.

Our Commitment to Your Health

At Triple-S, we believe that information is one of the most important tools to protect health. Keeping our members informed about public health issues, outbreaks, and prevention measures empowers them to make timely decisions for their health and well-being of their families.

If you have symptoms or concerns related to this condition, remember that you have access to multiple care options. In addition to your primary care physician, our members may use the following resources based on their needs:

  • Teleconsulta: A 24/7 telephone and chat health guidance service. Registered nurses provide guidance on health-related concerns and direct members to the appropriate level of care.
  • Teleconsulta MD: A telemedicine application that provides medical guidance and evaluation from wherever you are.
  • MiConsulta MD: Care stations located throughout Puerto Rico that combine telemedicine with in-person care.
    • Plaza Las Américas – First floor, across from JCPenney, San Juan
    • Plaza del Caribe – Across from Victoria’s Secret, Ponce
    • Plaza del Sol – Atrio Central, Bayamón
    • Farmacia Caridad – Ave. Degetau, Caguas
    • Farmacia Caridad – Carr. #2, Vega Baja
    • Farmacia Caridad – Plaza del Oeste Shopping Center, San Germán
  • Salus Urgent Care: Urgent care centers for conditions requiring medical evaluation without the need for an appointment and exclusively for Triple-S members. Locations include Caguas, Cayey, and Mayagüez.

If your symptoms worsen or you experience warning signs, seek care at the nearest emergency room. You may also use other available clinical resources to help you access the care you need in a timely manner.

Our commitment is to accompany you at every stage of your care, bringing accessible, reliable, and quality health services closer to you. We encourage you to use the available resources and to seek early medical guidance for any symptoms or concerns related to your health.

At Triple-S, we work every day to care for you, keep you informed, and help you make informed decisions that contribute to a healthier life.

 

References:

 

Part 1:

Part 2:

 

July 31, 2026
Triple-S Salud