- Malaria Research and Control
- Mosquito-borne diseases and control
- Global Maternal and Child Health
- COVID-19 epidemiological studies
- Child Nutrition and Water Access
- Travel-related health issues
- Healthcare Systems and Reforms
- Food Security and Health in Diverse Populations
- Parasites and Host Interactions
- Data-Driven Disease Surveillance
- Viral Infections and Vectors
- Parasitic Diseases Research and Treatment
- Vaccine Coverage and Hesitancy
- Viral Infections and Outbreaks Research
- Poverty, Education, and Child Welfare
- HIV/AIDS Impact and Responses
- Energy and Environment Impacts
- Impact of Light on Environment and Health
- Global Public Health Policies and Epidemiology
- Human Mobility and Location-Based Analysis
- Census and Population Estimation
- Zoonotic diseases and public health
- Urban Transport and Accessibility
- Global Health Care Issues
- ICT in Developing Communities
World Health Organization
2017-2023
World Health Organization - Pakistan
2010-2022
University of Oxford
2011-2021
Kenya Medical Research Institute
2010-2019
Wellcome Sanger Institute
2017
Pwani University
2017
Centre for Human Genetics
2017
London School of Hygiene & Tropical Medicine
2010-2017
The University of Melbourne
2017
Pennsylvania State University
2017
Mobile Phone “Hot Spots” An obstacle to developing effective national malaria control programs is a lack of understanding human movements, which are an important component disease transmission. As mobile phones have become increasingly ubiquitous, it now possible collect individual-level, longitudinal data on movements massive scale. Wesolowski et al. (p. 267 ) analyzed phone call records representing the travel patterns 15 million owners in Kenya over course year. This was combined with...
The spatial distribution of populations and settlements across a country their interconnectivity accessibility from urban areas are important for delivering healthcare, distributing resources economic development. However, existing spatially explicit population data Africa generally based on outdated, low resolution input demographic data, provide insufficient detail to quantify rural settlement patterns and, thus, accurately measure concentration accessibility. Here we outline approaches...
Background Efficient allocation of resources to intervene against malaria requires a detailed understanding the contemporary spatial distribution risk. It is exactly 40 y since last global map endemicity was published. This paper describes generation new world Plasmodium falciparum for year 2007. Methods and Findings A total 8,938 P. parasite rate (PfPR) surveys were identified using variety exhaustive search strategies. Of these, 7,953 passed strict data fidelity tests inclusion into...
Background The efficient allocation of financial resources for malaria control using appropriate combinations interventions requires accurate information on the geographic distribution risk. An evidence-based description global range Plasmodium falciparum and its endemicity has not been assembled in almost 40 y. This paper aims to define P. 2007 provide a preliminary transmission intensity within this range. Methods Findings spatial was generated nationally reported case-incidence data,...
Reference 56 [Hay SI, Sinka ME, Tatem AJ, Patil AP, Guerra CA, et al. (2009) Developing global maps of the dominant Anopheles vectors human malaria. PLoS Med. In press.] was erroneously listed as press. It in preparation at time but not published.
Philip Bejon and colleagues document the clustering of malaria episodes malarial parasite infection. These patterns may enable future prediction hotspots infection targeting treatment or preventive interventions.
Over a decade ago, the Roll Back Malaria Partnership was launched, and since then there has been unprecedented investment in malaria control. We examined change transmission intensity during period 2000-10 Africa.We assembled geocoded community Plasmodium falciparum parasite rate standardised to age group 2-10 years (PfPR2-10) database from across 49 endemic countries territories Africa surveys undertaken 1980. The data were used within Bayesian space-time geostatistical framework predict...
Insufficient growth during childhood is associated with poor health outcomes and an increased risk of death. Between 2000 2015, nearly all African countries demonstrated improvements for children under 5 years old stunting, wasting, underweight, the core components child failure. Here we show that striking subnational heterogeneity in levels trends remains. If current rates progress are sustained, many areas Africa will meet World Health Organization Global Targets 2025 to improve maternal,...
The rapid adoption of mobile phone technologies in Africa is offering exciting opportunities for engaging with high-risk populations through mHealth programs, and the vast volumes behavioral data being generated as people use their phones provide valuable about human dynamics these regions. Taking advantage requires an understanding penetration usage patterns across continent, but very little known social geographical heterogeneities ownership among African populations. Here, we analyze a...
Mobile phone data are increasingly being used to quantify the movements of human populations for a wide range social, scientific and public health research. However, making population-level inferences using these is complicated by differential ownership phones among different demographic groups that may exhibit variable mobility. Here, we effects bias on mobility estimates coupling two sources from same country during time frame. We analyse patterns one largest mobile datasets studied,...
SummaryBackgroundSubstantial progress has been made in reducing the burden of malaria Africa since 2000, but those gains could be jeopardised if COVID-19 pandemic affects availability key control interventions. The aim this study was to evaluate plausible effects on incidence and mortality under different levels disruption control.MethodsUsing an established set spatiotemporal Bayesian geostatistical models, we generated geospatial estimates across malaria-endemic African countries clinical...
Abstract Health facilities form a central component of health systems, providing curative and preventative services structured to allow referral through pyramid increasingly complex service provision. Access care is multidimensional concept, however, in its most narrow sense, it refers geographic availability. Linking populations has been traditional per capita index heath coverage, with locations higher resolution population data, Geographic Information Systems for more refined metric...
Background Inexpensive and efficacious interventions that avert childhood deaths in sub-Saharan Africa have failed to reach effective coverage, especially among the poorest rural sectors. One particular example is insecticide-treated bed nets (ITNs). In this study, we present repeat observations of ITN coverage Kenyan homesteads exposed at different times a range delivery models, assess changes across socioeconomic groups. Methods Findings We undertook study annual cohort 3,700 children aged...
There is only limited information on the health impact of expanded coverage malaria control and preventative strategies in Africa. Paediatric admission data were assembled over 8.25 years from three District Hospitals; Kilifi, Msambweni Malindi, situated along Kenyan Coast. Trends monthly admissions between January 1999 March 2007 analysed using several time-series models that adjusted for non-malaria rates seasonality trends rainfall. Since paediatric have significantly declined at all...
Summary Distance is a crucial feature of health service use and yet its application utility to care planning have not been well explored, particularly in the light large‐scale international national efforts such as Roll Back Malaria. We developed high‐resolution map population‐to‐service access four districts Kenya. Theoretical physical access, based upon targets, part Kenyan sector reform agenda, was compared with actual usage data among 1668 paediatric patients attending 81 sampled...
Between 2005 and 2050, the human population is forecast to grow by 2.7 billion, with vast majority of this growth occurring in low income countries. This likely have significant social, economic environmental impacts, make achievement international development goals more difficult. The measurement, monitoring potential mitigation these impacts require high resolution, contemporary data on distributions. In countries, however, where changes will be concentrated, least information distribution...
Summary Objective To systematically evaluate descriptive measures of spatial access to medical treatment, as part the millennium development goals reduce burden HIV/AIDS, tuberculosis and malaria. Methods We obtained high‐resolution epidemiological data on health services, population, transport network, topography, land cover paediatric fever treatment in four Kenyan districts develop use models for government services Kenya. Community survey were used model by febrile children. A based...
Summary Objectives Human population totals are used for generating burden of disease estimates at global, continental and national scales to help guide priority setting in international health financing. These exercises should be aware the accuracy demographic information used. Methods The analysis presented this paper tests five large‐area, public‐domain human distribution data maps against high spatial resolution census enumerated Kenya 1999. We illustrate epidemiological significance, by...
Population health is linked closely to poverty. To assess the effectiveness of interventions it critical monitor spatial and temporal changes in indicators populations outcomes across varying levels Existing measures poverty based on income, consumption or assets are difficult compare geographic settings expensive construct. Remotely sensed data artificial night time lights (NTL) have been shown correlate with gross domestic product developed countries.Using national household survey data,...