Preclinical profiling of the immunogenicity of a two-component subunit malaria vaccine candidate based on virosome technology (Publications)
anti-peptide responses, augmenting the value of this system for the development of a multivalent malaria vaccine
Estimation of the sequestered parasite load in severe malaria patients using both host and parasite markers (Publications)
The virulence of the malaria parasite Plasmodium falciparum is due, in part, to its ability to cytoadhere in deep vascular beds. Our inability to quantify the load of sequestered parasites hampers our [...] patterns of peripheral parasite densities in a series of 22 patients with severe Plasmodium falciparum malaria. The markers comprised the host factors: haematocrit, circulating host DNA, sTNF-R75 and parasite
Towards empirical description of malaria seasonality in southern Africa: the example of Zimbabwe (Publications)
BACKGROUND: Quantitative description and mapping of malaria seasonality is important for timely spatial targeting of interventions and for modelling malaria risk. There is a need for seasonality models that [...] use Zimbabwe as an example for developing an empirical map of malaria seasonality. We describe the relationship between seasonality in malaria and environmental covariates for the period 1988--1999, by fitting [...] seasonal trend. We adapt a seasonality concentration index used...
Socially marketed insecticide-treated nets improve malaria and anaemia in pregnancy in southern Tanzania (Publications)
CONCLUSIONS: A modest impact of ITNs on pregnancy malaria and anaemia was shown in our high malaria transmission setting. The development of ITN programmes for malaria control should include pregnant women as a [...] no anaemia, and of high density, low density and no malaria infection by ITN status. Recently treated nets were most effective at preventing malaria and anaemia (prevalence of mild anaemia was 68% compared [...] OBJECTIVES: To study the uptake of socially marketed...
Environmental predictors of the seasonality of malaria transmission in Africa: the challenge (Publications)
A description of malaria seasonality is important for planning and optimizing malaria control in both time and space, but adequate malariologic data are not available for many disease-endemic areas. We [...] between the seasonal dynamics of environmental determinants and malaria pose a great challenge and highlights the need for improved models of malaria seasonality
Effect of malaria on soluble transferrin receptor levels in Tanzanian infants (Publications)
iron deficiency in malaria endemic areas remains unresolved. Three hundred and fourteen infants in a rural area of southern Tanzania living under conditions of intense and perennial malaria transmission were [...] The diagnosis of iron deficiency anemia in malaria endemic areas is complicated by the influence of the infection on the laboratory tests conventionally used to assess iron status. Determination of soluble [...] plasma levels in the assessment of iron deficiency anemia. Independent of...
Case definitions of clinical malaria under different transmission conditions in Kilifi District, Kenya (Publications)
Background. Clear case definitions of malaria are an essential means of evaluating the effectiveness of present and proposed interventions in malaria. The clinical signs of malaria are nonspecific, and parasitemia [...] episode of clinical malaria in endemic areas. We defined and quantified cases of malaria in people of different age groups from 2 areas with different rates of transmission of malaria.Methods. A total of [...] of malaria.Results. Two case definitions of malaria were derived: 1...