| comparison of surveillance methods applied to a situation of low malaria prevalence at rural sites in the gambia and guinea bissau. | health record-based observations from several parts of africa indicate a major decline in malaria, but up-to-date information on parasite prevalence in west-africa is sparse. this study aims to provide parasite prevalence data from three sites in the gambia and guinea bissau, respectively, and compares the usefulness of pcr, rapid diagnostic tests (rdt), serology and slide-microscopy for surveillance. | 2009 | 19954532 |