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Synonym(s)
yaba-like disease
DefinitionThis section has been translated automatically.
Mild febrile illness caused by the tanapox virus.
PathogenThis section has been translated automatically.
Tanapox virus, belonging to the smallpox virus family. No relation to the Orthopoxviridae. Biocyclus between monkeys and mosquitoes. Contact infection in humans is possible.
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Occurrence/EpidemiologyThis section has been translated automatically.
Performances mainly in Kenya, Congo and Nigeria.
Clinical featuresThis section has been translated automatically.
- General: Incubation period: 2-24 days. Followed by fever for 2-4 days, headache, muscle pain, sweating, chills, cough, lymphadenopathy.
- Integument: Usually 2-10 acutely occurring papular and/or vesiculopustular skin lesions, mainly localized on the extremities. At first a small red macula becomes visible, which becomes increasingly raised in the centre and changes into plaque. The centre of the papule/plaque becomes necrotic. Approximately 1 week after the initial macula becomes visible, the plaque is about 10-15 mm in size. An environmental erythema and environmental oedema are visible. With increasing duration, the plaques decay and begin to ulcerate (usually stimulated by scratching artifacts) or increase in firmness and consistency until red nodes measuring approx. 20 mm in diameter have developed. Scarred spontaneous healing of the nodules over 6-8 weeks with formation of typical "pockmarks". Secondary impetiginisation is common with ulceration.
TherapyThis section has been translated automatically.
Symptomatic. Treatment of pruritus, if necessary. Possibly antibiotic therapy of secondary infections.
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Disclaimer
Please ask your physician for a reliable diagnosis. This website is only meant as a reference.
Prof. Dr. med. Peter Altmeyer