Evidence map›Paper›PMID 17922910›Full record

ArticleBMC infectious diseases2007

Molecular epidemiology of Hepatitis B virus genotypes in Pakistan.

Muhammad Masroor Alam, Sohail Zahoor Zaidi, Salman Akbar Malik, Shahzad Shaukat, Asif Naeem, Salmaan Sharif, Mehar Angez, Javed Aslam Butt

Abstract read
In one paragraph

Article in BMC infectious diseases, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
–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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Distribution of hepatitis B virus genotypes and demography in the general population of Karachi, Sindh.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
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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

8 authors.

Muhammad Masroor AlamDepartment of Virology, National Institute of Health, Islamabad, Pakistan. ursmasroor@yahoo.com
Sohail Zahoor Zaidi
Salman Akbar Malik
Shahzad Shaukat
Asif Naeem
Salmaan Sharif
Mehar Angez
Javed Aslam Butt

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEight genotypes of Hepatitis B virus designated A-H, have been known but in Pakistan, no such data is available on the prevalent HBV genotypes. Therefore, the subject study was conducted to determine HBV genotypes in the indigenous Pakistani population.

methodsA total of 690 individuals were enrolled for HBV screening with EIA and nested PCR. Positive samples were further analyzed to determine HBV genotypes (A-F) by multiplex-PCR using type specific primers.

results110 (15.94%) individuals were positive for HBV, including 64% males and 36% females. Out of these, 66 samples (65.34%) were classified into genotype D, 27 (26.73%) were of genotype B while 5(4.95%) had genotype A. In 3 (2.98%) samples, multiple genotypes were detected (genotype A+B; 2(1.99%) and genotypes B+D; 1(0.99%). Nine (8.18%) samples remained untyable.

conclusionIn Asia, genotypes B and C are the most prevalent but our study reveals that genotype D is predominant and HBV infection constitutes a significant health problem in Pakistan.

Indexed as

Molecular EpidemiologyAdolescentAdultChildChild, PreschoolFemaleGenes, ViralHepatitis BHepatitis B virusHumansInfantMaleMiddle AgedPakistan

Identifiers

PMID17922910
PMCPMC2089072

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Registered trials

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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.