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[Paradigm shift in bancroftian filariasis].
Gerusa Dreyer1, Denise Mattos, José Figueredo-Silva
1Organização Não-Governamental Amaury Coutinho para Doenças Endêmicas Tropicais, Recife, PE. dreyer-g@uol.com.br
Revista Da Associacao Medica Brasileira (1992)
|July 25, 2009
Summary
The old view of lymphatic filariasis is replaced by a new paradigm. Secondary bacterial infections, not Wuchereria bancrofti, are key to lymphedema, offering hope for prevention through hygiene.
Area of Science:
- Medical Science
- Parasitology
- Public Health
Context:
- Scientific understanding evolves through research, sometimes leading to paradigm shifts.
- Thomas Kuhn's 'change of paradigm' describes profound shifts in scientific reference points.
- The traditional view of lymphatic filariasis (LF) has been challenged by new findings.
Purpose:
- To present the paradigm shift in understanding the pathogenesis of lymphatic filariasis.
- To highlight the role of secondary bacterial infections in LF progression.
- To emphasize the importance of hygiene in preventing LF complications.
Summary:
- The old paradigm of LF attributed elephantiasis solely to adult Wuchereria bancrofti obstructing lymphatic vessels.
- The new paradigm identifies repeated secondary bacterial infections as the primary driver of chronic lymphedema in LF-endemic areas.
- Wuchereria bancrofti infection alone does not necessarily lead to the disfiguring manifestations of lymphatic dysfunction.
Impact:
- This paradigm shift offers hope for preventing the disfiguring effects of LF.
- Simple hygiene practices, like regular washing with soap and water, can significantly minimize acute bacterial episodes.
- Improved understanding can lead to better public health strategies and improved quality of life in endemic communities.
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