ArticleBMJ global health2024
Widening geographic range of Rift Valley fever disease clusters associated with climate change in East Africa.
Article in BMJ global health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed.
- Opportunities and challenges for countermeasures against Rift Valley fever virus: A quintessential One Health pathogen.PLoS neglected tropical diseases · 2026Review
- Seroprevalence of Rift Valley fever virus and factors associated with exposure in south-central Uganda.BMC infectious diseases · 2026Article
- Climate-sensitive infectious diseases in transition: a scoping review of key diseases and their epidemiology, data applications and mechanism of outbreak response in Saudi Arabia.BMC infectious diseases · 2026Article
- High-resolution automated mapping of potential Aedes larval container habitats using drone imagery and supervised machine learning in Dar es Salaam, Tanzania.PLoS neglected tropical diseases · 2026Article
- Epidemiological and molecular characterization of Rift Valley fever outbreak in livestock in Burundi, May - November 2022.PLoS neglected tropical diseases · 2026Article
- Ferritin nanoparticles displaying rift valley fever virus glycoprotein elicit potent dendritic cell activation in vitro.Virology journal · 2026Article
- Unreported Rift Valley fever virus circulation during 2023-2024 El Niño event detected by slaughterhouse-based surveillance in southern Kenya.Scientific reports · 2026Article
- Understanding the Rift Valley fever exposure risk: A comparative perspective from a multi-country study in East and Central Africa, 2021-24.PLoS neglected tropical diseases · 2026Article
- A Cross-Sectional Study of Rift Valley Fever Exposure in Humans and Livestock in Southwestern Uganda Using a One Health Approach: Evidence of Elevated Seroprevalence Outside Recognized Outbreak Periods.Pathogens (Basel, Switzerland) · 2026Article
- Human and livestock exposure to Rift Valley fever virus and Coxiella burnetii in Eastern Ethiopia: a One Health cross-sectional study.Tropical medicine and health · 2026Article
- Interepidemic Rift Valley fever in East Africa: the recent risk landscape and projected impacts of global change.Proceedings. Biological sciences · 2026Article
- Hyperendemicity of Rift Valley Fever in Southwestern Uganda Associated With the Rapidly Evolving Lineage C Viruses.The Journal of infectious diseases · 2026Article
- Spatial heterogeneity of Rift Valley fever burden in Kenya: a 10-year One Health zDALY evaluation.Science in One Health · 2026Article
- Local drivers of Rift Valley fever outbreaks in Mauritania: A one health approach combining ecological, vector, host and livestock movement data.PLoS neglected tropical diseases · 2025Article
- Climate Change and the Impact on Ocular Infectious Diseases: A Narrative Review.Ophthalmology and therapy · 2025Review
- Article
- Have you heard of Rift Valley fever? Findings from a multi-country study in East and Central Africa.PloS one · 2025Article
- Assessing Sub-Saharan Africa's readiness to address the impact of climate change and health: A scoping review.PloS one · 2025Article
- Serological Evidence of Cryptic Rift Valley Fever Virus Transmission Among Humans and Livestock in Central Highlands of Kenya.Viruses · 2024Article
- Integration of infectious diseases in climate governance in the Horn of Africa: A document review of climate strategies, policies, and action plans across four countries.The journal of climate change and healthReview
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Abstract
backgroundRecent epidemiology of Rift Valley fever (RVF) disease in Africa suggests growing frequency and expanding geographic range of small disease clusters in regions that previously had not reported the disease. We investigated factors associated with the phenomenon by characterising recent RVF disease events in East Africa.
methodsData on 100 disease events (2008-2022) from Kenya, Uganda and Tanzania were obtained from public databases and institutions, and modelled against possible geoecological risk factors of occurrence including altitude, soil type, rainfall/precipitation, temperature, normalised difference vegetation index (NDVI), livestock production system, land-use change and long-term climatic variations. Decadal climatic variations between 1980 and 2022 were evaluated for association with the changing disease pattern.
resultsOf 100 events, 91% were small RVF clusters with a median of one human (IQR, 1-3) and three livestock cases (IQR, 2-7). These clusters exhibited minimal human mortality (IQR, 0-1), and occurred primarily in highlands (67%), with 35% reported in areas that had never reported RVF disease. Multivariate regression analysis of geoecological variables showed a positive correlation between occurrence and increasing temperature and rainfall. A 1°C increase in temperature and a 1-unit increase in NDVI, one months prior were associated with increased RVF incidence rate ratios of 1.20 (95% CI 1.1, 1.2) and 1.93 (95% CI 1.01, 3.71), respectively. Long-term climatic trends showed a significant decadal increase in annual mean temperature (0.12-0.3°C/decade, p<0.05), associated with decreasing rainfall in arid and semi-arid lowlands but increasing rainfall trends in highlands (p<0.05). These hotter and wetter highlands showed increasing frequency of RVF clusters, accounting for 76% and 43% in Uganda and Kenya, respectively.
conclusionThese findings demonstrate the changing epidemiology of RVF disease. The widening geographic range of disease is associated with climatic variations, with the likely impact of wider dispersal of virus to new areas of endemicity and future epidemics.
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