Evidence map›Paper›PMID 34835116›Full record

ArticleViruses2021

Molecular and Serological Characterization of the SARS-CoV-2 Delta Variant in Bangladesh in 2021.

Asish Kumar Ghosh, Marco Kaiser, Md Maruf Ahmed Molla, Tasnim Nafisa, Mahmuda Yeasmin, Rifat Hossain Ratul, Md Mohiuddin Sharif, Arifa Akram, Nur Hosen, Rashid Mamunur and 5 more

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

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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

15 authors at 5 institutions in 2 countries.

Asish Kumar GhoshDepartment of Virology, Dhaka Medical College Hospital, Dhaka 1000, Bangladesh.ORCID 0000-0001-5735-3606
Marco KaiserGenExpress Gesellschaft für Proteindesign GmbH, Eresburgstraße 22-23 D, 12103 Berlin, Germany.
Md Maruf Ahmed MollaNational Institute of Laboratory Medicine and Referral Center, Sher E-Bangla Nagar, Dhaka 1207, Bangladesh.ORCID 0000-0002-5062-9144
Tasnim NafisaNational Institute of Laboratory Medicine and Referral Center, Sher E-Bangla Nagar, Dhaka 1207, Bangladesh.
Mahmuda YeasminNational Institute of Laboratory Medicine and Referral Center, Sher E-Bangla Nagar, Dhaka 1207, Bangladesh.
Rifat Hossain RatulDepartment of Virology, Dhaka Medical College Hospital, Dhaka 1000, Bangladesh.
Md Mohiuddin SharifDepartment of Virology, Dhaka Medical College Hospital, Dhaka 1000, Bangladesh.
Arifa AkramNational Institute of Laboratory Medicine and Referral Center, Sher E-Bangla Nagar, Dhaka 1207, Bangladesh.
Nur HosenNational Institute of Laboratory Medicine and Referral Center, Sher E-Bangla Nagar, Dhaka 1207, Bangladesh.
Rashid MamunurBangladesh Institute Tropical Infectious Disease (BITID), Fouzderhat, Chittagong 4317, Bangladesh.
Md Robed AminDepartment of Virology, Dhaka Medical College Hospital, Dhaka 1000, Bangladesh.ORCID 0000-0002-5500-5103
Alimul IslamDepartment of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.ORCID 0000-0002-6186-8044
Md Ehsanul HoqueNational Institute of Laboratory Medicine and Referral Center, Sher E-Bangla Nagar, Dhaka 1207, Bangladesh.
Olfert LandtTIB Molbiol GmbH, Eresburgstraße 22-23, 12103 Berlin, Germany.
Simon D LyttonSeraDiaLogistics, 81545 Munich, Germany.ORCID 0000-0001-5617-4139
National Institute of Neurosciences & Hospital · BDDhaka Medical College and Hospital · BDBangladesh Agricultural University · BDGesellschaft für Klinische Forschung · DETIB Molbiol (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Novel SARS-CoV-2 variants are emerging at an alarming rate. The delta variant and other variants of concern (VoC) carry spike (S)-protein mutations, which have the potential to evade protective immunity, to trigger break-through infections after COVID-19 vaccination, and to propagate future waves of COVID-19 pandemic. To identify SARS CoV-2 variants in Bangladesh, patients who are RT-PCR-positive for COVID-19 infections in Dhaka were screened by a RT-PCR melting curve analysis for spike protein mutations. To assess the anti-SARS CoV-2 antibody responses, the levels of the anti-S -proteins IgA and IgG and the anti-N-protein IgG were measured by ELISA. Of a total of 36 RT-PCR positive samples (75%), 27 were identified as delta variants, with one carrying an additional Q677H mutation and two with single nucleotide substitutions at position 23029 (compared to Wuhan-Hu-1 reference NC 045512) in the genome sequence. Three (8.3%) were identified as beta variants, two (5.5%) were identified as alpha variants, three (8.3%) were identified as having a B.1.1.318 lineage, and one sample was identified as an eta variant (B.1.525) carrying an additional V687L mutation. The trend of higher viral load (lower Cp values) among delta variants than in the alpha and beta variants was of borderline statistical significance (

Indexed as

Antibodies, ViralBangladeshCoronavirus Nucleocapsid ProteinsCOVID-19Cross-Sectional StudiesGenome, ViralHumansMutationPhosphoproteinsSARS-CoV-2Spike Glycoprotein, CoronavirusViral LoadAntibodies, ViralCoronavirus Nucleocapsid Proteinsnucleocapsid phosphoprotein, SARS-CoV-2PhosphoproteinsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2amino acid mutationsanti-N-protein IgGanti-S-protein IgGBangladeshdelta variantRT-PCRSARS-CoV-2sequencingsingle nucleotide polymorphismVirSNiP

Identifiers

PMID34835116
PMCPMC8623815
OpenAlexW3217596829

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.