The MalariaWorld Journal

It has been recommended that the use of ACTs is restricted to only those with confirmed positive malaria diagnosis. The potential benefits of rapid diagnostic tests (RDTs) on anti-malarial drug consumption have been demonstrated in a number of clinical trials. ACT prescribing patterns for febrile patients were compared pre- and post-RDT introduction in 106 Nigerian primary health care facilities. Routine data from the national malaria control programme monthly facility summary forms were extracted for three months before and after the RDT intervention and compared using a ‘before and after’ design. RDT testing rates for patients with fever revealed no trend; mean testing rate in the post RDT period was 64.5%. The mean malaria positivity rate was 71.3%, which equalled a proportional morbidity rate of 45.9% of all fever cases. ACT treatment to confirmed case ratio was consistently above the expected value of one and the ratio of treatment to tested patient exceeded one (mean ratio of 1.1) for the three months post RDT. The absolute number of ACT doses prescribed increased remarkably after the introduction of RDTs. There is notable non-adherence to RDT results, with an increase in ACT prescriptions after the initial introductory period for RDTs. This over reliance on ACTs for the management of non-malaria illness could compromise gains from reducing malaria morbidity and mortality and needs to be addressed urgently.

The objective of this paper was to review the changing landscape of malaria and its implication for disease management, vector control, and livelihoods in Tanzania. It seeks to examine the links within a broad framework that considers the different pathways given the multiplicity of interactions that can produce unexpected outcomes and trade-offs. Despite the remarkable decline in malaria burden, Tanzania is faced with a number of challenges. These include the development of resistance of malaria vectors to pyrethroids, changing mosquito behaviour and livelihood activities that increase mosquito productivity and exposure to mosquito bites. In addition, there are challenges related to health systems, community perceptions, community involvement and sustainability of funding to the national malaria control programme. This review indicates that malaria remains an important and challenging disease that illustrates the interactions among ecosystems, livelihoods, and health systems. Livelihoods and several sectoral development activities including construction, water resource development and agricultural practices contribute significantly to malaria mosquito productivity and transmission. Consequently, these situations require innovative and integrative re-thinking of the strategies to prevent and control malaria. In conclusion, to accelerate and sustain malaria control in Tanzania, the prevention strategies must go hand in hand with an intersectoral participation approach that takes into account ecosystems and livelihoods that have the potential to increase or decrease malaria transmission.