Related Experiment Video
Updated: Aug 9, 2026
Standard Membrane Feeding Assay for the Detection of Plasmodium falciparum Infection in Anopheles Mosquito Vectors
Published on: May 12, 2022
Standardized data collection for multi-center clinical studies of severe malaria in African children: establishing
Terrie Taylor1, Christopher Olola, Clarissa Valim
1Department of Internal Medicine, College of Osteopathic Medicine, Michigan State University, E. Lansing, MI 48824, USA. taylort@msu.edu
Insights
The Severe Malaria in African Children (SMAC) network collected data on severe malaria in over 20,000 children. This research provides crucial insights into disease burden and informs future intervention studies for better sample size estimates.
Area of Science:
- Pediatrics
- Infectious Diseases
- Epidemiology
Background:
- Severe falciparum malaria is a leading cause of child mortality in Africa, affecting over one million children annually.
- Individual research centers face challenges in enrolling sufficient patient numbers for statistically significant mortality trials.
- Understanding epidemiological variations in severe malaria is essential for designing effective intervention studies.
Purpose of the Study:
- To quantify and characterize severe malaria syndromes and their associated mortality rates across diverse African settings.
- To inform the design of future intervention studies by providing precise sample size estimates.
- To establish a collaborative network for large-scale malaria research.
Main Methods:
- The Severe Malaria in African Children (SMAC) network utilized standardized surveillance to collect clinical, laboratory, and outcome data.
- Data were gathered on all parasitemic children admitted to hospitals across five sites.
- A total of 20,333 patients were enrolled between December 2000 and December 2003.
Main Results:
- Significant variations in the frequency of severe malaria syndromes (cerebral malaria, severe malarial anemia, acidosis) were observed between study sites.
- Syndrome-specific mortality rates also differed across the investigated locations.
- The data indicate that intervention studies within the current network would require 3-4 years for completion.
Conclusions:
- The SMAC network successfully provided accurate estimates of the disease burden of severe malaria in hospitalized African children.
- Collaborative networks are vital for recruiting adequate patient numbers and capturing the epidemiological diversity of malaria in sub-Saharan Africa.
- SMAC represents a pioneering effort in developing such a research capacity for malaria mortality studies.
Abstract:
The Severe Malaria in African Children (SMAC) network was established to conduct mortality-based trials. Although falciparum malaria kills more than one million children each year, single centers cannot enroll enough patients to detect reductions of 20-30% in mortality rates. Our aim was to quantify and describe severe malaria across a variety of epidemiological settings so that we could design intervention studies with more precise sample size estimates. We used a standardized surveillance mechanism to capture clinical, laboratory and outcome data on all parasitemic children admitted to hospital. Between December 2000 and December 2003, 20333 patients were enrolled at five sites. The frequency of severe malaria syndromes (cerebral malaria, severe malarial anemia and acidosis) differed between sites, as did the syndrome-specific mortality rates. Intervention studies targeted at reducing mortality in one or a combination of severe malaria syndromes would require 3-4 years to complete within the existing network. These data provide more accurate estimates of the disease burden of children hospitalized for malaria in sub-Saharan Africa. Networks are required to recruit enough patients for mortality-based studies and to encompass the epidemiological diversity of malaria in sub-Saharan Africa. SMAC represents the first effort to develop this capacity.
