Evidence map›Paper›PMID 21423577›Full record

ArticlePloS one2011

Ten years of surveillance for invasive Streptococcus pneumoniae during the era of antiretroviral scale-up and cotrimoxazole prophylaxis in Malawi.

Dean B Everett, Mavuto Mukaka, Brigitte Denis, Stephen B Gordon, Enitan D Carrol, Joep J van Oosterhout, Elizabeth M Molyneux, Malcolm Molyneux, Neil French, Robert S Heyderman

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

45 citing papers in PubMed, 74 citations in OpenAlex.

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  10. Early Signals of Vaccine-driven Perturbation Seen in Pneumococcal Carriage Population Genomic Data.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020
    Article
  11. Genomic Characteristics of InvasiveBioinformatics and biology insights · 2020
    Article
  12. Article
  13. Indirect Effects of 10-Valent Pneumococcal Conjugate Vaccine Against Adult Pneumococcal Pneumonia in Rural Western Kenya.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019
    Article
  14. Pneumococcal Conjugate Vaccine Impact on Meningitis and Pneumonia Among Children Aged <5 Years-Zimbabwe, 2010-2016.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019
    Article
  15. Etiology and Risk Factors for Mortality in an Adult Community-acquired Pneumonia Cohort in Malawi.American journal of respiratory and critical care medicine · 2019
    Observational
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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

10 authors at 5 institutions in 2 countries.

Dean B EverettMalawi-Liverpool-Wellcome Trust Clinical Research Programme, College of Medicine, Chichiri, Blantyre, Malawi. Dean.Everett@liverpool.ac.uk
Mavuto Mukaka
Brigitte Denis
Stephen B Gordon
Enitan D Carrol
Joep J van Oosterhout
Elizabeth M Molyneux
Malcolm Molyneux
Neil French
Robert S Heyderman
Malawi-Liverpool-Wellcome Trust Clinical Research Programme · MWUniversity of Liverpool · GBLiverpool School of Tropical Medicine · GBLondon School of Hygiene & Tropical Medicine · GBUniversity of Malawi · MW

Funding

Wellcome TrustWellcome Trust 084679/Z/08/Z
6 · The paper itself

Abstract

objectiveTo document trends in invasive pneumococcal disease (IPD) in a central hospital in Malawi during the period of national scale-up of antiretroviral therapy (ART) and cotrimoxazole prophylaxis.

methodsBetween 1 January 2000 and 31 December 2009 almost 100,000 blood cultures and 40,000 cerebrospinal fluid (CSF) cultures were obtained from adults and children admitted to the Queen Elizabeth Central Hospital, Blantyre, Malawi with suspected severe bacterial infection.

results4,445 pneumococcal isolates were obtained over the 10 year period. 1,837 were from children: 885 (19.9%) from blood and 952 (21.4%) from CSF. 2,608 were from adults: 1,813 (40.8%) from blood and 795 (17.9%) from CSF. At the start of the surveillance period cotrimoxazole resistance was 73.8% and at the end was 92.6%. Multidrug resistance (MDR) was present in almost one third of isolates and was constant over time. Free ART was introduced in Malawi in 2004. From 2005 onwards there was a decline in invasive pneumococcal infections with a negative correlation between ART scale-up and the decline in IPD (Pearson's correlation r = -0.91; p<0.001).

conclusionDuring 2004-2009, national ART scale-up in Malawi was associated with a downward trend in IPD at QECH. The introduction of cotrimoxazole prophylaxis in HIV-infected groups has not coincided with a further increase in pneumococcal cotrimoxazole or multidrug resistance. These data highlight the importance of surveillance for high disease burden infections such as IPD in the region, which will be vital for monitoring pneumococcal conjugate vaccine introduction into national immunisation programmes.

Indexed as

Antibiotic ProphylaxisPopulation SurveillanceAdultAnti-Retroviral AgentsChildDrug Resistance, MicrobialHumansMalawiPneumococcal InfectionsRainSeasonsStreptococcus pneumoniaeTrimethoprim, Sulfamethoxazole Drug CombinationAnti-Retroviral AgentsTrimethoprim, Sulfamethoxazole Drug Combination

Identifiers

PMID21423577
PMCPMC3058053
OpenAlexW2100106336

What OpenQuestion holds

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LicenceCC BY
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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.