ArticlePLoS neglected tropical diseases2016
Estimating Geographical Variation in the Risk of Zoonotic Plasmodium knowlesi Infection in Countries Eliminating Malaria.
Article in PLoS neglected tropical diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 7 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
75 citing papers in PubMed, 7 syntheses or guidelines pooled it, 122 citations in OpenAlex.
- Prevalence and determinants of zoonotic malaria in the Greater Mekong Subregion (GMS) and Malaysia: systematic review and meta-analysis.Malaria journal · 2025Pooled it
- Pooled it
- A systematic review of asymptomatic Plasmodium knowlesi infection: an emerging challenge involving an emerging infectious disease.Malaria journal · 2022Pooled it
- The Role of Human Behavior inInternational journal of environmental research and public health · 2022Pooled it
- Is there evidence of sustained human-mosquito-human transmission of the zoonotic malaria Plasmodium knowlesi? A systematic literature review.Malaria journal · 2022Pooled it
- Malaria distribution and performance of malaria diagnostic methods in Malaysia (1980-2019): a systematic review.Malaria journal · 2020Pooled it
- Deaths From Plasmodium knowlesi Malaria: Case Series and Systematic Review.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019Pooled it
- Artemether-Lumefantrine Versus Chloroquine for the Treatment of Uncomplicated Plasmodium knowlesi Malaria: An Open-Label Randomized Controlled Trial CAN KNOW.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018Trial
- Article
- Zoonotic malaria in Southeast Asia's changing landscapes: vector complexity, challenges, and future strategies.Parasites & vectors · 2026Review
- Article
- The household economic burden of human-only and zoonotic malaria, compared to other causes of acute febrile illness in Indonesia.BMJ global health · 2026Article
- First molecular confirmations of Anopheles dirus and Anopheles scanloni in Indonesia, with DNA of zoonotic, enzootic and human malarias detected in An. dirus.Scientific reports · 2026Article
- Submicroscopic Burden of Zoonotic Plasmodium knowlesi Malaria on Mursala Island and Plasmodium falciparum and Plasmodium vivax Transmission in Mainland North Sumatra, Indonesia.The American journal of tropical medicine and hygiene · 2026Article
- Community awareness and health providers' perspectives on zoonotic Plasmodium knowlesi malaria in Thailand: A mixed-methods assessment.PLoS neglected tropical diseases · 2026Article
- What does monkey malaria mean to you? A participatory photovoice study in rural Malaysian Borneo.Malaria journal · 2026Article
- Plasmodium knowlesi and global changes: socio-ecological drivers and challenges.Malaria journal · 2025Review
- Plasmodium cynomolgi: potential emergence of new zoonotic malaria in Southeast Asia.Parasites & vectors · 2025Review
- The overlapping global distribution of dengue, chikungunya, Zika and yellow fever.Nature communications · 2025Article
- Why the growth of arboviral diseases necessitates a new generation of global risk maps and future projections.PLoS computational biology · 2025Article
15 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
21 authors at 9 institutions in 6 countries.
Funding
Abstract
backgroundInfection by the simian malaria parasite, Plasmodium knowlesi, can lead to severe and fatal disease in humans, and is the most common cause of malaria in parts of Malaysia. Despite being a serious public health concern, the geographical distribution of P. knowlesi malaria risk is poorly understood because the parasite is often misidentified as one of the human malarias. Human cases have been confirmed in at least nine Southeast Asian countries, many of which are making progress towards eliminating the human malarias. Understanding the geographical distribution of P. knowlesi is important for identifying areas where malaria transmission will continue after the human malarias have been eliminated. METHODOLOGY/PRINCIPAL
findingsA total of 439 records of P. knowlesi infections in humans, macaque reservoir and vector species were collated. To predict spatial variation in disease risk, a model was fitted using records from countries where the infection data coverage is high. Predictions were then made throughout Southeast Asia, including regions where infection data are sparse. The resulting map predicts areas of high risk for P. knowlesi infection in a number of countries that are forecast to be malaria-free by 2025 (Malaysia, Cambodia, Thailand and Vietnam) as well as countries projected to be eliminating malaria (Myanmar, Laos, Indonesia and the Philippines). CONCLUSIONS/SIGNIFICANCE: We have produced the first map of P. knowlesi malaria risk, at a fine-scale resolution, to identify priority areas for surveillance based on regions with sparse data and high estimated risk. Our map provides an initial evidence base to better understand the spatial distribution of this disease and its potential wider contribution to malaria incidence. Considering malaria elimination goals, areas for prioritised surveillance are identified.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.