Evidence map›Paper›PMID 38844987›Full record

ArticleMalaria journal2024

LLIN Evaluation in Uganda Project (LLINEUP): modelling the impact of COVID-19-related disruptions on delivery of long-lasting insecticidal nets on malaria indicators in Uganda.

Jaffer Okiring, Samuel Gonahasa, Catherine Maiteki-Sebuguzi, Agaba Katureebe, Irene Bagala, Peter Mutungi, Simon P Kigozi, Jane F Namuganga, Joaniter I Nankabirwa, Moses R Kamya and 4 more

Abstract read
In one paragraph

Article in Malaria journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Rethinking the evidence on COVID-19 in Africa.The Lancet. Infectious diseases · 2025
    Review
  3. Article
  4. 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

14 authors.

Jaffer OkiringClinical Epidemiology Unit, Makerere University College of Health Sciences, PO Box 7475, Kampala, Uganda. okjaffer@gmail.com.
Samuel GonahasaInfectious Diseases Research Collaboration, Kampala, Uganda.
Catherine Maiteki-SebuguziInfectious Diseases Research Collaboration, Kampala, Uganda.
Agaba KatureebeInfectious Diseases Research Collaboration, Kampala, Uganda.
Irene BagalaInfectious Diseases Research Collaboration, Kampala, Uganda.
Peter MutungiInfectious Diseases Research Collaboration, Kampala, Uganda.
Simon P KigoziInfectious Diseases Research Collaboration, Kampala, Uganda.
Jane F NamugangaInfectious Diseases Research Collaboration, Kampala, Uganda.
Joaniter I NankabirwaClinical Epidemiology Unit, Makerere University College of Health Sciences, PO Box 7475, Kampala, Uganda.
Moses R KamyaInfectious Diseases Research Collaboration, Kampala, Uganda.
Martin J DonnellyDepartment of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, UK.
Thomas S ChurcherMRC Centre for Global Infectious Disease Analysis, Imperial College London, London, UK.
Sarah G StaedkeDepartment of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, UK.
Ellie Sherrard-SmithMRC Centre for Global Infectious Disease Analysis, Imperial College London, London, UK.

Funding

Gates Foundation OPP1210750Medical Research Council MR/R015600/1Medical Research Council MR/X020258/1UKRI Fellowship from the Medical Research Council MR/T041986/1
6 · The paper itself

Abstract

backgroundDisruptions in malaria control due to COVID-19 mitigation measures were predicted to increase malaria morbidity and mortality in Africa substantially. In Uganda, long-lasting insecticidal nets (LLINs) are distributed nationwide every 3-4 years, but the 2020-2021 campaign was altered because of COVID-19 restrictions so that the timing of delivery of new nets was different from the original plans made by the National Malaria Control Programme.

methodsA transmission dynamics modelling exercise was conducted to explore how the altered delivery of LLINs in 2020-2021 impacted malaria burden in Uganda. Data were available on the planned LLIN distribution schedule for 2020-2021, and the actual delivery. The transmission model was used to simulate 100 health sub-districts, and parameterized to match understanding of local mosquito bionomics, net use estimates, and seasonal patterns based on data collected in 2017-2019 during a cluster-randomized trial (LLINEUP). Two scenarios were compared; simulated LLIN distributions matching the actual delivery schedule, and a comparable scenario simulating LLIN distributions as originally planned. Model parameters were otherwise matched between simulations.

resultsApproximately 70% of the study population received LLINs later than scheduled in 2020-2021, although some areas received LLINs earlier than planned. The model indicates that malaria incidence in 2020 was substantially higher in areas that received LLINs late. In some areas, early distribution of LLINs appeared less effective than the original distribution schedule, possibly due to attrition of LLINs prior to transmission peaks, and waning LLIN efficacy after distribution. On average, the model simulations predicted broadly similar overall mean malaria incidence in 2021 and 2022. After accounting for differences in cluster population size and LLIN distribution dates, no substantial increase in malaria burden was detected.

conclusionsThe model results suggest that the disruptions in the 2020-2021 LLIN distribution campaign in Uganda did not substantially increase malaria burden in the study areas.

Indexed as

COVID-19Insecticide-Treated BednetsMalariaMosquito ControlHumansUgandaCOVID-19Long-lasting insecticidal netsMalariaModellingUganda

Identifiers

PMID38844987
PMCPMC11157881

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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.