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Related Experiment Videos

Transfusional Mansonella perstans microfilariasis.

E R Bregani1, L Balzarini, C Ghiringhelli

  • 1Department of Internal Medicine, Division of Emergency Medicine, Ospedale Maggiore IRCCS, Milan, Italy. rino_bregani@yahoo.it

Parassitologia
|July 23, 2004
PubMed
Summary

Transfused microfilariae of Mansonella perstans (a parasitic worm) were cleared from a child's blood without causing symptoms. Only adult worms, not microfilariae, likely cause illness in Mansonella perstans filariasis.

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Area of Science:

  • Medical Parasitology
  • Infectious Diseases
  • Public Health

Background:

  • Mansonella perstans filariasis is endemic in Central Africa and Equatorial America.
  • Severe Plasmodium falciparum malaria is a significant health concern in endemic regions.
  • Transfusion-transmitted infections are a potential risk in areas with high parasitic prevalence.

Observation:

  • A case of post-transfusional Mansonella perstans microfilariasis occurred in a young child with severe malaria in Chad.
  • A notable decrease in M. perstans microfilariae was observed in the patient's blood.
  • The child did not develop clinical symptoms or eosinophilia associated with the microfilaremia.

Findings:

  • Transfused M. perstans microfilariae appear to be cleared from the bloodstream relatively quickly in endemic areas.

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  • Microfilariae in the bloodstream may not be the direct cause of clinical manifestations or eosinophilia.
  • Adult worms are likely responsible for the pathological symptoms and eosinophilia in M. perstans filariasis.

    • Implications:

    • This suggests a self-limiting nature for transfused microfilariae, reducing transfusion-related risks.
    • Understanding the role of microfilariae versus adult worms is crucial for diagnosing and managing filariasis.
    • Further research is needed to elucidate the clearance mechanisms and the pathogenesis of M. perstans infection.