Evidence map›Paper›PMID 31150445›Full record

ArticlePloS one2019

Hepatitis B sero-prevalence in children under 15 years of age in South Africa using residual samples from community-based febrile rash surveillance.

Nishi Prabdial-Sing, Lillian Makhathini, Sheilagh Brigitte Smit, Morubula Jack Manamela, Nkengafac Villyen Motaze, Cheryl Cohen, Melinda Shelley Suchard

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. A case-control study of risk factors for incident hepatitis B virus infection in South African blood donors.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Prevalence of viral hepatitis B and C in Sierra Leone-current knowledge and knowledge gaps: a narrative review.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2021
    Review
  11. Review
  12. 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 at 1 institution in 1 country.

Nishi Prabdial-SingCentre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), a division of the National Health Laboratory Service, Johannesburg, South Africa.
Lillian MakhathiniCentre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), a division of the National Health Laboratory Service, Johannesburg, South Africa.
Sheilagh Brigitte SmitCentre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), a division of the National Health Laboratory Service, Johannesburg, South Africa.
Morubula Jack ManamelaCentre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), a division of the National Health Laboratory Service, Johannesburg, South Africa.
Nkengafac Villyen MotazeCentre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), a division of the National Health Laboratory Service, Johannesburg, South Africa.ORCID 0000-0003-0227-6425
Cheryl CohenCentre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases, a division of the National Health Laboratory Service, Johannesburg, South Africa.
Melinda Shelley SuchardCentre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), a division of the National Health Laboratory Service, Johannesburg, South Africa.ORCID 0000-0002-6978-4654
National Health Laboratory Service · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

INTRODUCTION AND

methodsHepatitis B is a vaccine preventable disease and is notifiable in South Africa. Hepatitis B vaccination was incorporated into the Expanded Programme on Immunisation in South Africa in 1995. We used a convenience sample from community-based febrile rash surveillance in 2013 to estimate hepatitis B sero-prevalence. Of samples serologically negative for acute measles infection, 450 samples spanning nine provinces of South Africa were tested for hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (anti-HBs) and hepatitis B core antibody (anti-HBc).

resultsTwo children (2/450; 0.4%) tested positive for HBsAg. Three hundred and three children (67.3%) had evidence of vaccine induced immunity. Vaccine induced immunity was present in 80.2% of 1-5 year olds, but only 60.3% of 10-14 year olds. Natural immunity, indicating exposure to circulating hepatitis B, was present in 13/450 (2.9%) children.

conclusionChronic hepatitis B in South African has decreased in prevalence from highly endemic levels prior to vaccine introduction to approximately 0.4% in this sample, demonstrating impact of a successful vaccination programme 18 years after introduction. Decreased vaccine-induced immunity with increasing age may reflect waning antibody titres over time.

Indexed as

AdolescentChildChild, PreschoolExanthemaFemaleHepatitis BHepatitis B AntibodiesHepatitis B Core AntigensHepatitis B Surface AntigensHepatitis B VaccinesHumansImmunization ProgramsInfantInfant, NewbornMaleMeaslesHepatitis B AntibodiesHepatitis B Core AntigensHepatitis B Surface AntigensHepatitis B Vaccines

Identifiers

PMID31150445
PMCPMC6544234
OpenAlexW2946873949

What OpenQuestion holds

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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.