Evidence map›Paper›PMID 30264686›Full record

ArticleEpidemiology and infection2018

Compartmental models for seasonal hyperendemic bacterial meningitis in the African meningitis belt.

T Koutangni, P Crépey, M Woringer, S Porgho, B W Bicaba, H Tall, J E Mueller

Abstract read
In one paragraph

Article in Epidemiology and infection, 2018. 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. Review
  2. Article
  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

7 authors.

T KoutangniUniversité Pierre et Marie Curie, 4 Place Jussieu, 75005 Paris, France.ORCID https://orcid.org/0000-0002-1892-9112
P CrépeyUMR Emergence des Pathologies Virales, Université Aix-Marseille - IRD 190 - Inserm 1207 - EHESP, 27 Boulevard Jean-Moulin 13385 Marseille Cedex 5, France.
M WoringerInstitut de Biologie de l'Ecole Normale Supérieure (IBENS), PSL Research University, 45 Rue d'Ulm, 75005 Paris, France.ORCID https://orcid.org/0000-0003-2581-9808
S PorghoDirection de la Lutte contre la Maladie, Ministère de la Santé, 03 BP 7035 Ouagadougou 03, Burkina Faso.
B W BicabaDirection de la Lutte contre la Maladie, Ministère de la Santé, 03 BP 7035 Ouagadougou 03, Burkina Faso.
H TallAgence de Médecine Préventive, 10 BP 638. Ouagadougou, Burkina Faso.
J E MuellerUnité de l'Epidémiologie des Maladies Emergentes, Institut Pasteur, 25-28 Rue du Dr Roux, 75015 Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pathophysiological mechanisms underlying the seasonal dynamic and epidemic occurrence of bacterial meningitis in the African meningitis belt remain unknown. Regular seasonality (seasonal hyperendemicity) is observed for both meningococcal and pneumococcal meningitis and understanding this is critical for better prevention and modelling. The two principal hypotheses for hyperendemicity during the dry season imply (1) an increased risk of invasive disease given asymptomatic carriage of meningococci and pneumococci; or (2) an increased transmission of these bacteria from carriers and ill individuals. In this study, we formulated three compartmental deterministic models of seasonal hyperendemicity, featuring one (model1-'inv' or model2-'transm'), or a combination (model3-'inv-transm') of the two hypotheses. We parameterised the models based on current knowledge on meningococcal and pneumococcal biology and pathophysiology. We compared the three models' performance in reproducing weekly incidences of suspected cases of acute bacterial meningitis reported by health centres in Burkina Faso during 2004-2010, through the meningitis surveillance system. The three models performed well (coefficient of determination R2, 0.72, 0.86 and 0.87, respectively). Model2-'transm' and model3-'inv-transm' better captured the amplitude of the seasonal incidence. However, model2-'transm' required a higher constant invasion rate for a similar average baseline transmission rate. The results suggest that a combination of seasonal changes of the risk of invasive disease and carriage transmission is involved in the hyperendemic seasonality of bacterial meningitis in the African meningitis belt. Consequently, both interventions reducing the risk of nasopharyngeal invasion and the bacteria transmission, especially during the dry season are believed to be needed to limit the recurrent seasonality of bacterial meningitis in the meningitis belt.

Indexed as

African meningitis belthyperendemicitymathematical modelMeningitisseasonality

Identifiers

PMID30264686
PMCPMC6520558

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.