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First known case of human bertiellosis in a child in Paraná, Brazil
Nathália Mitsue Kishi1, Amanda Parteka de Godoy1, Bárbara Luiza Viana Afonso1
1Universidade Federal do Paraná, Curitiba, PR, Brazil.
Insights
This study reports the first human Bertiellosis case in Paraná, Brazil. The rare zoonosis caused chronic abdominal pain and tapeworm expulsion, requiring specific diagnosis and treatment.
Area of Science:
- Medical Parasitology
- Zoonotic Diseases
Background:
- Bertiellosis is a rare zoonotic infection caused by tapeworms of the genus Bertiella.
- Human infections are infrequently reported globally, making each case significant for understanding transmission and clinical presentation.
Observation:
- A 6-year-old boy in Paraná, Brazil, presented with chronic abdominal pain and distension.
- He intermittently expelled live tapeworms, initially misdiagnosed as Taenia sp.
- Parasitological examination confirmed Bertiella sp. infection.
Findings:
- The patient's symptoms persisted despite initial treatment with albendazole and nitazoxanide.
- Praziquantel at 10 mg/kg was administered, but tapeworm expulsion continued.
- This case highlights diagnostic challenges and potential treatment resistance in human Bertiellosis.
Implications:
- Human Bertiellosis should be considered in the differential diagnosis of chronic abdominal pain and recurrent tapeworm expulsion.
- Refractory cases to standard anti-taeniid medication warrant further investigation for rare parasites like Bertiella sp.
- This case contributes to the limited data on human Bertiellosis in South America.
Objective:
To describe the first known case of human Bertiellosis in Paraná (Brazil).
Case Description:
A 6-year-old male residing in the Brazilian state of Paraná was suffering from intermittent nonspecific abdominal pain and abdominal distension, associated with expulsion of live tapeworms in his feces for 7 months. He had a history of interaction with monkeys on an island. His first feces analysis was inconclusive, with an initial hypothesis of an atypical Taenia. However, after additional research, the parasitologist identified pregnant proglottids of Bertiella sp. The patient was initially treated with an unknown dosage of albendazole and nitazoxanide, as it was believed he had been infected with Taenia sp. Since the symptoms persisted, praziquantel 10 mg/kg was prescribed without further proglottids elimination.
Comments:
Human Bertiellosis is a rare zoonosis, with less than one hundred cases reported. However, it is a cause of chronic abdominal pain and should be kept as a differential diagnosis, especially in cases reporting recurrent tapeworm expulsion in feces and refractory treatment with albendazole.
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