Evidence map›Paper›PMID 35298546›Full record

ArticlePloS one2022

Use of oral polio vaccine and the incidence of COVID-19 in the world.

Farrokh Habibzadeh, Konstantin Chumakov, Mohammad M Sajadi, Mahboobeh Yadollahie, Kristen Stafford, Ashraf Simi, Shyamasundaran Kottilil, Iman Hafizi-Rastani, Robert C Gallo

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 23 citations in OpenAlex.

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  2. Risk Adjustment in Medical Research: A Bird's Eye View.Journal of Korean medical science · 2024
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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

9 authors at 3 institutions in 2 countries.

Farrokh HabibzadehGlobal Virus Network, Middle East Region, Shiraz, Iran.ORCID 0000-0001-5360-2900
Konstantin ChumakovOffice of Vaccines Research and Review, Food and Drug Administration, Global Virus Network Center of Excellence, Silver Spring, Maryland, United States of America.
Mohammad M SajadiInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Mahboobeh YadollahieFreelance Researcher, Shiraz, Iran.
Kristen StaffordInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Ashraf SimiResearch and Development Headquarters, Petroleum Industry Health Organization, Shiraz, Iran.
Shyamasundaran KottililInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Iman Hafizi-RastaniResearch and Development Headquarters, Petroleum Industry Health Organization, Shiraz, Iran.
Robert C GalloInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.ORCID 0000-0002-3797-7910
University of Maryland, Baltimore · USGlobal Virus Network · USIran Meteorological Organization · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral live attenuated vaccines were shown to provide temporary protection against a variety of infectious diseases through stimulation of the host innate immune system.

objectiveTo test the hypothesis that countries using oral polio vaccine (OPV) have a lower cumulative number of cases diagnosed with COVID-19 per 100,000 population (CP100K) compared with those using only inactivated polio vaccine (IPV).

methodsIn an ecological study, the CP100K was compared between countries using OPV vs IPV. We used a random-effect meta-analysis technique to estimate the pooled mean for CP100K. We also used negative binomial regression with CP100K as the dependent variable and the human development index (HDI) and the type of vaccine used as independent variables.

resultsThe pooled estimated mean CP100K was 4970 (95% CI 4030 to 5900) cases per 100,000 population for countries using IPV, significantly (p<0.001) higher than that for countries using OPV-1580 (1190 to 1960). Countries with higher HDI prefer to use IPV; those with lower HDI commonly use OPV. Both HDI and the type of vaccine were independent predictors of CP100K. Use of OPV compared to IPV could independently decrease the CP100K by an average of 30% at the mean HDI of 0.72.

conclusionsCountries using OPV have a lower incidence of COVID-19 compared to those using IPV. This might suggest that OPV may either prevent SARS-CoV-2 infection at individual level or slow down the transmission at the community level.

Indexed as

COVID-19Global HealthHumansIncidencePoliovirus Vaccine, InactivatedPoliovirus Vaccine, OralPoliovirus Vaccine, InactivatedPoliovirus Vaccine, Oral

Identifiers

PMID35298546
PMCPMC8929581
OpenAlexW4220927985

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.