Evidence map›Paper›PMID 37349311›Full record

ArticleNature communications2023

Multiplexed ddPCR-amplicon sequencing reveals isolated Plasmodium falciparum populations amenable to local elimination in Zanzibar, Tanzania.

Aurel Holzschuh, Anita Lerch, Inna Gerlovina, Bakar S Fakih, Abdul-Wahid H Al-Mafazy, Erik J Reaves, Abdullah Ali, Faiza Abbas, Mohamed Haji Ali, Mohamed Ali Ali and 3 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
9.3field-weighted citation impact, top 2% of its field
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

26 citing papers in PubMed, 32 citations in OpenAlex.

  1. Trial
  2. Article
  3. UnderstandingiScience · 2026
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  5. Genetic metrics decodeFrontiers in genetics · 2026
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  9. A NovelmedRxiv : the preprint server for health sciences · 2025
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  10. UnderstandingmedRxiv : the preprint server for health sciences · 2025
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  11. Article
  12. Sensitive and modular amplicon sequencing ofbioRxiv : the preprint server for biology · 2025
    Article
  13. Article
  14. Review
  15. Article
  16. Deletion of ATAmerican journal of physiology. Renal physiology · 2024
    Article
  17. Review
  18. Application of a new highly multiplexed amplicon sequencing tool to evaluatemedRxiv : the preprint server for health sciences · 2024
    Article
  19. Article
  20. 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

13 authors at 6 institutions in 3 countries.

Aurel HolzschuhDepartment of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Indiana, IN, USA. aholzsch@nd.edu.ORCID 0000-0002-2681-1114
Anita LerchDepartment of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Indiana, IN, USA.ORCID 0000-0003-3062-5901
Inna GerlovinaEPPIcenter Research Program, Division of HIV, ID and Global Medicine, Department of Medicine, University of California, San Francisco, CA, USA.
Bakar S FakihSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Abdul-Wahid H Al-MafazyResearch Triangle Institute (RTI) International, Zanzibar, United Republic of Tanzania.
Erik J ReavesU.S. Centers for Disease Control and Prevention, President's Malaria Initiative, Dar es Salaam, United Republic of Tanzania.
Abdullah AliZanzibar Malaria Elimination Programme, Zanzibar, United Republic of Tanzania.
Faiza AbbasZanzibar Malaria Elimination Programme, Zanzibar, United Republic of Tanzania.
Mohamed Haji AliZanzibar Malaria Elimination Programme, Zanzibar, United Republic of Tanzania.
Mohamed Ali AliZanzibar Malaria Elimination Programme, Zanzibar, United Republic of Tanzania.
Manuel W HetzelSwiss Tropical and Public Health Institute, Allschwil, Switzerland.ORCID 0000-0002-5285-3254
Joshua YukichSchool of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA.ORCID 0000-0002-6160-5295
Cristian KoepfliDepartment of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Indiana, IN, USA. ckoepfli@nd.edu.ORCID 0000-0002-9354-0414
Zanzibar University · TZUniversity of Notre Dame · USIfakara Health Institute · TZSwiss Tropical and Public Health Institute · CHTulane University · USUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zanzibar has made significant progress toward malaria elimination, but recent stagnation requires novel approaches. We developed a highly multiplexed droplet digital PCR (ddPCR)-based amplicon sequencing method targeting 35 microhaplotypes and drug-resistance loci, and successfully sequenced 290 samples from five districts covering both main islands. Here, we elucidate fine-scale Plasmodium falciparum population structure and infer relatedness and connectivity of infections using an identity-by-descent (IBD) approach. Despite high genetic diversity, we observe pronounced fine-scale spatial and temporal parasite genetic structure. Clusters of near-clonal infections on Pemba indicate persistent local transmission with limited parasite importation, presenting an opportunity for local elimination efforts. Furthermore, we observe an admixed parasite population on Unguja and detect a substantial fraction (2.9%) of significantly related infection pairs between Zanzibar and the mainland, suggesting recent importation. Our study provides a high-resolution view of parasite genetic structure across the Zanzibar archipelago and provides actionable insights for prioritizing malaria elimination efforts.

Indexed as

Malaria, FalciparumPlasmodium falciparumDrug ResistanceHumansPolymerase Chain ReactionTanzania

Identifiers

PMID37349311
PMCPMC10287761
OpenAlexW4381682935

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.