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Published on: July 4, 2007
Eradicating malaria
1Fogarty International Center (FIC) of the US National Institutes of Health, Bethesda, Maryland 20892, USA. jbreman@nih.gov
Insights
Malaria remains a critical threat, especially to children and pregnant women in Africa. Global efforts, including new drugs, bednets, and vaccines, are reducing deaths and improving control.
Area of Science:
- Global Health
- Infectious Diseases
- Parasitology
Background:
- Malaria causes millions of deaths annually, disproportionately affecting young children and pregnant women in Africa.
- Drug resistance in Plasmodium falciparum and insecticide resistance in Anopheles mosquitoes present significant challenges to malaria control.
- Malaria-related complications include neurological impairment, anemia, hypoglycemia, and low birth weight, hindering development and survival.
Purpose of the Study:
- To review the current status of malaria research and control strategies.
- To highlight the impact of global initiatives and funding on malaria morbidity and mortality.
- To discuss the future prospects for malaria elimination.
Main Methods:
- Review of current scientific literature and reports on malaria control and research.
- Analysis of trends in drug and insecticide resistance.
- Examination of progress in vaccine development and implementation of control programs.
Main Results:
- Development of artemisinin-based combination treatments (ACTs) and insecticide-treated bednets (ITNs) have shown efficacy.
- Indoor residual spraying (IRS) with new insecticides is under development.
- The RTS,S/AS02A malaria vaccine is progressing to Phase 3 trials.
- Significant reductions in malaria morbidity and mortality are observed in many affected countries due to increased support and interventions.
Conclusions:
- Global collaboration and funding are crucial for combating malaria.
- Sustainable control programs require strengthened institutions, improved surveillance, and continued research.
- Malaria elimination is achievable through integrated strategies, including novel therapeutics, vector control, and vaccination.
Abstract:
The renewed interest in malaria research and control is based on the intolerable toll this disease takes on young children and pregnant women in Africa and other vulnerable populations; 150 to 300 children die each hour from malaria amounting to 1 to 2 million deaths yearly. Malaria-induced neurologic impairment, anemia, hypoglycemia, and low birth weight imperil normal development and survival. Resistance of Plasmodium falciparum to drugs and Anopheles mosquitoes to insecticides has stimulated discovery and development of artemisinin-based combination treatments (ACTs) and other drugs, long-lasting insecticide-treated bednets (with synthetic pyrethroids) and a search for non-toxic, long-lasting, affordable insecticides for indoor residual spraying (IRS). Malaria vaccine development and testing are progressing rapidly and a recombinant protein (RTS,S/AS02A) directed against the circumsporozoite protein is soon to be in Phase 3 trials. Support for malaria control, research, and advocacy through the Global Fund for HIV/AIDS, Tuberculosis and Malaria, the U.S. President's Malaria Initiative, the Bill & Melinda Gates Foundation, WHO and other organizations is resulting in decreasing morbidity and mortality in many malarious countries. Sustainability of effective programs through training and institution strengthening will be the key to malaria elimination coupled with improved surveillance and targeted research.
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