Evidence map›Paper›PMID 40045681›Full record

ArticleParasites, hosts and diseases2025

Prevalence of asymptomatic malaria in high- and low-transmission areas of Tanzania: The role of asymptomatic carriers in malaria persistence and the need for targeted surveillance and control efforts.

Ernest Mazigo, Hojong Jun, Wang-Jong Lee, Johnsy Mary Louis, Fadhila Fitriana, Jadidan Hada Syahada, Fauzi Muh, Feng Lu, Md Atique Ahmed, Seok Ho Cha and 12 more

Abstract read
In one paragraph

Article in Parasites, hosts and diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Epidemiology of malaria and leishmaniasis in Thailand (2004-2025): A systematic review.Current research in parasitology & vector-borne diseases · 2026
    Review
  6. Article
  7. Emergence of chloroquine-sensitiveEmerging microbes & infections · 2025
    Article
  8. Article
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

22 authors.

Ernest MazigoDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Hojong JunDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Wang-Jong LeeDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Johnsy Mary LouisDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Fadhila FitrianaDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Jadidan Hada SyahadaDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Fauzi MuhDepartment of Epidemiology and Tropical Diseases, Faculty of Public Health, Universitas Diponegoro, Semarang 50275, Indonesia.
Feng LuDepartment of Pathogen Biology and Immunology, School of Medicine, Yangzhou University, Yangzhou 225009, China.
Md Atique AhmedICMR-Regional Medical Research Centre, NER, Dibrugarh, Assam 786001, India.
Seok Ho ChaDepartment of Parasitology and Tropical Medicine, Inha University School of Medicine, Incheon 22212, Korea.
Wanjoo ChunDepartment of Pharmacology, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Won Sun ParkDepartment of Physiology, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Se Jin LeeDepartment of Obstetrics and Gynecology, Kangwon National University Hospital, Chuncheon 24289, Korea.
Sunghun NaDepartment of Obstetrics and Gynecology, Kangwon National University Hospital, Chuncheon 24289, Korea.
Joon-Hee HanInstitute of Biological Resources, Chuncheon Bioindustry Foundation, Chuncheon 24232, Korea.
Nyalali KijaDepartment of Monitoring, Evaluation and Learning, Afya Plus, Dar es Salaam 31011, Tanzania.
Smart GeodfreyDepartment of Paediatrics and Child Health, Kigoma Regional Referral Hospital, Kigoma 16, Tanzania.
Eun-Teak HanDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.
Jim ToddDepartment of Biostatistics, Catholic University of Health and Allied Sciences (CUHAS), Mwanza 1464, Tanzania.
Alphaxard ManjuranoDepartment of Parasitic Diseases, National Institute for Medical Research, Dar es Salaam 11101, Tanzania.
Winifrida KidimaDepartment of Zoology, College of Natural and Applied Sciences, University of Dar es Salaam, Dar es Salaam 35064, Tanzania.
Jin-Hee HanDepartment of Medical Environmental Biology and Tropical Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Korea.

Funding

Korea Health Industry Development InstituteMinistry of EducationMinistry of Health and Welfare HI22C0820National Research Foundation of Korea 2022RIS005National Research Foundation of Korea RS-2023-00240627
6 · The paper itself

Abstract

As many countries implement different programs aimed at eliminating malaria, attention should be given to asymptomatic carriers that may interrupt the progress. This was a community-based cross-sectional study conducted in Tanzania from December 2022 to July 2023 within 4 villages from each of the 3 regions, Geita and Kigoma, which are high malaria transmission, and Arusha, which is low transmission. Malaria was diagnosed in asymptomatic individuals aged 1 year and older using the malaria rapid diagnostic test and light microscope. A total of 2,365 of 3,489 (67.9%) participants were enrolled from high-transmission villages. The overall prevalence was 25.5% and 15.8% by malaria rapid diagnostic test and light microscope, respectively. Using the respective tools, the prevalence was significantly higher at 35.6% (confidence interval (CI)=23.6-49.9) and 23.1% (CI=16.2-35.1) in the high-transmission regions (Geita and Kigoma) compared with 2.9% (CI=1.1-3.5) and 1.1% (CI=0.7-1.8) in the low-transmission region (Arusha). Children younger than 15 years and males accounted for the greatest proportion of infections. In the study area, the prevalence of asymptomatic cases was higher than that of reported symptomatic cases in health facilities. We hypothesize that these parasite reservoirs may contribute to the persistence of malaria in the country. Therefore, to achieve comprehensive malaria control in the country, the surveillance and screening of asymptomatic malaria cases are vital.

Indexed as

Asymptomatic InfectionsCarrier StateMalariaAdolescentAdultAgedChildChild, PreschoolCross-Sectional StudiesFemaleHumansInfantMaleMiddle AgedPrevalenceTanzaniaAsymptomaticchildrenmalariamicrogeographicPlasmodium falciparumprevalenceTanzania

Identifiers

PMID40045681
PMCPMC11895088

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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.