What Africa still needs to do to eliminate malaria
Eliminating malaria in Africa has been weakened by the lack of sustained funds
Tuesday, 2nd May 2017
Willis Simon Akhwale, University of Washington
Malaria is one of the oldest and deadliest infectious diseases affecting man. It is an ancient and modern disease – descriptions of illnesses similar to malaria are found in ancient texts from China, India, the Middle East, Africa and Europe. Malaria parasites have co-evolved – which involves genetic changes and adaptation – with people as their hosts over a period of four thousand years. After the Second World War, the Global Malaria Eradication Programme was intensified by the discovery of DDT, a powerful pesticide. The campaign partially reduced the malaria transmission cycle and infection rates within a short time. The US eradicated malaria by 1951 but in Latin and South America pockets recurred two decades later. Today malaria has been eliminated in 26 other countries including Cuba, Italy and Japan. About 65 countries are planning to eradicate the disease between 2020 and 2030. Africa carries a disproportionately high burden of malaria cases. In 2015 214 million people across the world were infected with malaria leading to about 430 000 deaths. Of these, 90% occurred in Africa. And two countries on the continent, Nigeria and the Democratic Republic of Congo, accounted for more than 35% of global malaria deaths.There has been some improvement. Between 2010 and 2015 there was a 21% reduction of malaria cases reported on the continent, and a 31% reduction in number of deaths.
But Africa needs to urgently put a number of additional measures in place to speed up these advances, and to move towards eliminating the disease. These include accelerated investment and deployment of vaccines, new diagnostic tools, new funding strategies for malaria control and keeping in check the drug and insecticide resistance challenge.
Funding is also key if African countries are going to move closer to eradication. Evidence shows that eliminating malaria in Africa has been weakened by the lack of sustained funds.What’s made a difference, where the problems lie
The following major investments in the last one and a half decades have led to the incidents of malaria declining:
- Insecticide treated bed nets
- effective antimalarial medicines
- indoor residual spraying
These are the cornerstones of effective malaria control. But there are a few hurdles that threaten their usefulness. These include:
- drug and insecticide resistance
- the quality of antigen based rapid diagnostic malaria test kits. They do not detect sub-microscopic levels of malaria parasites.
Challenges facing Africa
Among the key challenges facing Africa in malaria elimination are:
Infrastructure challenges: weak health systems, resources like manpower, inaccessibility to malaria control services and poor surveillance systems are to blame for a weak roll out during the implementation phase. Health systems are under-resourced and poorly accessible to those most at risk. In 2015, a large proportion (36%) of children with a fever were not taken to a health facility for care in 23 African countries. Drug resistance: it’s worrying that signs of resistance to artemesinin has been reported in about 12 African countries. This follows the rapid spread of drug resistance first reported in the greater Mekong region in south East Asia. Insecticide resistance: since 2010, 60 of the 73 countries that monitor insecticide resistance have reported mosquito resistance to at least one insecticide class used in nets and indoor spraying. From these samples, 50 reported resistance to two or more insecticide classes.The way forward
To achieve low transmission rates and eventual elimination, African countries need to invest in understanding the geography, evolutionary history of flora and fauna, infrastructure and land use in Africa. An analysis into the eradication of malaria historically found that by understanding and addressing these factors, malaria control can be more successful.In addition, African countries need to diversify financing of malaria control. The initiatives should be cost effective to ensure they are accessible and evenly rolled out even in the continent’s poor resource regions.
And a national health financing strategy and road map to universal health coverage should be developed and implemented in sub-Saharan countries with a high burden of malaria.
All partners from the public and private sector, the civil society, development partners and the community should be involved. One of the reasons that community involvement is important is because it encourages ownership which leads to credible data which in turn makes it possible to monitor progress.
Africa has unfinished business before it achieves the aspirational theme of World Malaria Day – “End Malaria for good”. Robust investment and new malaria control tools are urgently needed to propel countries towards eliminating the disease.
Willis Simon Akhwale, Country Director I-TECH Kenya, University of WashingtonLatest
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