Spatio-temporal modelling of routine health facility data for malaria risk micro-stratification in mainland Tanzania (Publications)
probability of malaria TPR exceeding programmatic threshold was estimated. Results showed a marked spatial heterogeneity in malaria TPR across wards. 17.7 million people resided in areas where malaria TPR was [...] As malaria transmission declines, the need to monitor the heterogeneity of malaria risk at finer scales becomes critical to guide community-based targeted interventions. Although routine health facility [...] million people lived in areas where malaria TPR was very low ( < 5%; 90%...
Variability in white blood cell count during uncomplicated malaria and implications for parasite density estimation: a WorldWide Antimalarial... (Publications)
count during acute uncomplicated malaria, and estimate the impact of using an assumed value of WBC on estimates of parasite density and clearance. METHODS: Uncomplicated malaria drug efficacy studies that measured [...] and vivax (n = 2678) malaria, respectively. At presentation, higher WBC counts were seen among patients with higher parasitaemia, severe anaemia and, for individuals with vivax malaria, in regions with shorter [...] reference. RESULTS: Eighty-four studies enrolling 27,656...
Malaria, climate variability, and interventions: modelling transmission dynamics (Publications)
of the relative impact of climate change on malaria dynamics is a complex problem. Climate is a well-known factor that plays a crucial role in driving malaria outbreaks in epidemic transmission areas. However [...] influence in endemic environments with intensive malaria control interventions is not fully understood, mainly due to the scarcity of high-quality, long-term malaria data. The demographic surveillance systems [...] effects of weather variability on the burden of malaria. Here, using a...
Modelling the impact of interventions on imported, introduced and indigenous malaria infections in Zanzibar, Tanzania (Publications)
Malaria cases can be classified as imported, introduced or indigenous cases. The World Health Organization's definition of malaria elimination requires an area to demonstrate that no new indigenous cases [...] cases have occurred in the last three years. Here, we present a stochastic metapopulation model of malaria transmission that distinguishes between imported, introduced and indigenous cases, and can be used [...] interventions in a setting with low transmission and ongoing case importation....
Acceptability, feasibility, drug safety, and effectiveness of a pilot mass drug administration with a single round of sulfadoxine-pyrimethamine plus... (Publications)
For a malaria elimination strategy, Haiti's National Malaria Control Program piloted a mass drug administration (MDA) with indoor residual spraying (IRS) in 12 high-transmission areas across five communes [...] round of MDA/IRS on malaria transmission was not found using a standard pre- and post-intervention comparison, it is possible there was blunting of the peak transmission. Seasonal malaria transmission patterns
Feasibility and acceptability of a strategy deploying multiple first-line artemisinin-based combination therapies for uncomplicated malaria in the... (Publications)
(1) Background: Effective malaria case management relies on World Health Organization (WHO) recommended artemisinin-based combination therapies (ACTs), but partial resistance to artemisinin has emerged [...] emerged and is spreading, threatening malaria control and elimination efforts. The strategy of deploying multiple first-line therapies (MFT) may help mitigate this threat and extend the therapeutic life of current [...] conducted, deploying three different ACTs at the public health facility...
Improving coverage of antenatal iron and folic acid supplementation and malaria prophylaxis through targeted information and home deliveries in Côte... (Publications)
09, p=0.235) for INFO+DELIV. While INFO had no effect on malaria parasitaemia (aPR=0.95, 95% CI 0.39 to 2.31, p=0.915), INFO+DELIV reduced malaria parasitaemia by 83% (aPR=0.17, 95% CI 0.04 to 0.75, p=0 [...] INTRODUCTION: Coverage of antenatal iron and folic acid (IFA) supplementation and malaria chemoprophylaxis remains low in many low-income and middle-income settings. We assessed the effectiveness of personal [...] intermittent preventive treatment in pregnancy (IPTp), and their...