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La propagación intercontinental de la malaria resistente a las pirimetaminas se ha extendido por todo el mundo
Cally Roper1, Richard Pearce, Shalini Nair
1London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK. cally.roper@lshtm.ac.uk
Science (New York, N.Y.)
|August 25, 2004
Resumen
Los parásitos de la malaria con resistencia a la pirimetamina migraron desde el sudeste asiático a África. Esta resistencia a los medicamentos se está extendiendo rápidamente, amenazando el tratamiento asequible de la malaria y causando una crisis de salud pública en el África subsahariana.
Área de la Ciencia:
- Biología molecular La biología molecular.
- Parasitología Parasitología.
- Salud pública La salud pública.
Sus antecedentes:
- La pirimetamina es un fármaco antimalarial muy importante.
- Los parásitos de la malaria resistentes a los medicamentos representan una amenaza significativa para la salud mundial.
- Comprender el origen y la propagación de la resistencia es vital para el control de la malaria.
Objetivo del estudio:
- Presentar evidencia molecular para el origen de los parásitos de la malaria resistentes a la pirimetamina en África.
- Para rastrear la propagación de estos alelos de resistencia en todo el continente africano.
- Para resaltar las implicaciones para la salud pública de la resistencia a los fármacos antimaláricos generalizada.
Principales métodos:
- Análisis molecular de las poblaciones de parásitos de la malaria.
- Secuenciación genética para identificar alelos de resistencia.
- Seguimiento epidemiológico de los patrones de migración de parásitos.
Principales resultados:
- La evidencia molecular confirma la introducción de parásitos de la malaria resistentes a la pirimetamina en África desde el sudeste asiático.
- Los alelos de resistencia de alto nivel se están extendiendo a un ritmo alarmante por toda África.
- Esta propagación señala un posible fin a las opciones de tratamiento de la malaria asequibles.
Conclusiones:
- Los hallazgos subrayan la necesidad urgente de mejorar las estrategias de vigilancia y control de la malaria.
- El surgimiento y la propagación de la resistencia a los medicamentos requieren el desarrollo de nuevas terapias antimaláricas.
- El África subsahariana se enfrenta a un desafío crítico de salud pública debido a la malaria resistente a los medicamentos.
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