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Estudiaron tres poblaciones africanas: dos en Tanzania, que son meso e hiperendémicas para el tracoma, y una en Gambia, donde hay una prevalencia relativamente baja de la enfermedad activa. Tomaron muestras conjuntivales de más de 3.100 personas, que fueron analizadas mediante PCR.
Entre los resultados, publicados en “The Lancet”, el estudio confirma la importancia de los niños como el mayor reservorio de infección en las áreas muy endémicas; señala que en las tres poblaciones las personas con tracoma inflamatorio tenían el número más elevado de copias de C. trachomatis en sus muestras y que el 52% de los gambianos con rasguños en la conjuntiva pero sin signos de enfermedad activa dieron resultados positivos en la PCR. Los autores del estudio prosiguen ahora su investigación acerca de la cantidad precisa de carga bacteriana que comporta riesgo de infección.
Webs Relacionadas
The Lancet
http://www.thelancet.com/
London School of Hygiene & Tropical Medicine
http://www.lshtm.ac.uk/