Thailand Warns of Rising Trichinellosis Cases Linked to Raw Pork Consumption

Thai health officials are warning the public about a recent increase in trichinellosis, commonly known as “ear fever,” across 28 provinces. As of February 26, 2026, 49 cases have been confirmed, tragically resulting in three deaths. The Ministry of Public Health is strongly advising citizens to avoid consuming raw or undercooked pork and pork products to mitigate the risk of infection.

What is Trichinellosis?

Trichinellosis is a parasitic disease caused by eating raw or undercooked meat infected with the larvae of Trichinella roundworms . The infection occurs when cysts containing these larvae hatch in the intestines and develop into adult worms. While pork was historically a major source of infection in the United States, modern farming regulations have significantly reduced the risk. However, wild game, such as bear and wild boar, remains a potential source of infection .

Symptoms of Trichinellosis

Symptoms of trichinellosis can vary in severity and often mimic the flu, making diagnosis challenging. Initial symptoms typically appear within 1-2 days of consuming contaminated meat and may include:

• Nausea
• Diarrhea
• Fatigue
• Fever
• Abdominal discomfort

As the infection progresses, more severe symptoms can develop, including:

• Headache
• Chills
• Cough
• Swelling of the face and eyes
• Aching joints and muscle pain
• Itchy skin
• Constipation

In severe cases, trichinellosis can lead to difficulty coordinating movements, heart and breathing problems, and even death .

Prevention: Cooking Meat Thoroughly

The most effective way to prevent trichinellosis is to cook meat to a safe internal temperature. This kills the Trichinella larvae, rendering the meat safe for consumption. The CDC recommends cooking pork to an internal temperature of 145°F (63°C) with a three-minute rest time . Freezing pork for an extended period can also kill the larvae, but cooking remains the most reliable method.

Current Situation in Thailand

According to the Department of Disease Control, the province of Nakhon Ratchasima (Korat) has reported the highest number of cases in this outbreak. Health officials are urging anyone experiencing symptoms consistent with trichinellosis to seek immediate medical attention .

Key Takeaways

• Trichinellosis is a parasitic infection contracted through eating undercooked meat.
• Symptoms can range from mild (flu-like) to severe and life-threatening.
• Thoroughly cooking meat, especially pork, is the best way to prevent infection.
• If you suspect you have trichinellosis, seek medical attention immediately.

Health authorities will continue to monitor the situation and provide updates as they become available. The public is encouraged to remain vigilant and practice safe food handling procedures.