[Eight cases of diphyllobothriasis]

Area of Science:

• Medical Parasitology
• Infectious Diseases

Background:

• Diphyllobothriasis, a parasitic infection caused by Diphyllobothrium tapeworms, is a global health concern.
• Human infection typically results from consuming raw or undercooked freshwater fish containing tapeworm larvae.

Observation:

• Eight cases of diphyllobothriasis were managed at Juntendo University Hospital.
• Seven out of eight patients presented with tapeworm fragments, and five had Diphyllobothrium latum eggs in their stool.
• Potential sources of infection included raw trout (sushi), raw salmon, and possible overseas transmission.

Findings:

• Bithoinol was administered to seven patients, resulting in the successful excretion of tapeworms in four.
• The scolex, the tapeworm's head, was identified in three of the four patients who excreted the worm.
• No recurrence of infection or adverse findings were noted post-treatment.

Implications:

• Bithoinol demonstrates efficacy in treating diphyllobothriasis, facilitating tapeworm and scolex expulsion.
• Early diagnosis and treatment are crucial for managing diphyllobothriasis and preventing complications.
• Understanding transmission routes, including dietary habits and travel history, is vital for public health interventions.