Evidence map›Paper›PMID 33891281›Full record

ArticleInfection2021

Virological COVID-19 surveillance in Bavaria, Germany suggests no SARS-CoV-2 spread prior to the first German case in January 2020.

Ute Eberle, Susanne Heinzinger, Regina Konrad, Clara Wimmer, Bernhard Liebl, Katharina Katz, Nikolaus Ackermann, Andreas Sing, Bavarian SARS-CoV-Public Health Laboratory and Epidemiology Team

Open access · hybridAbstract read
In one paragraph

Article in Infection, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 38% 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

5 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
  4. Article
  5. Vaccine breakthrough infection and onward transmission of SARS-CoV-2 Beta (B.1.351) variant, Bavaria, Germany, February to March 2021.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2021
    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

9 authors at 3 institutions in 1 country.

Ute Eberle *Unit of Virology, Bavarian Health and Food Safety Authority, Oberschleißheim, Germany.
Susanne Heinzinger *Unit of Public Health Microbiology, Bavarian Health and Food Safety Authority, Bayerisches Landesamt Für Gesundheit Und Lebensmittelsicherheit (LGL), Veterinärstraße 2, 85764, Oberschleißheim, Germany.
Regina KonradUnit of Virology, Bavarian Health and Food Safety Authority, Oberschleißheim, Germany.
Clara WimmerUnit of Virology, Bavarian Health and Food Safety Authority, Oberschleißheim, Germany.
Bernhard LieblState Institute of Health, Bavarian Health and Food Safety Authority, Oberschleißheim, Germany.
Katharina KatzUnit of Infectious Diseases Epidemiology, Bavarian Health and Food Safety Authority, Oberschleißheim, Germany.
Nikolaus Ackermann *Unit of Virology, Bavarian Health and Food Safety Authority, Oberschleißheim, Germany.
Andreas Sing *Unit of Public Health Microbiology, Bavarian Health and Food Safety Authority, Bayerisches Landesamt Für Gesundheit Und Lebensmittelsicherheit (LGL), Veterinärstraße 2, 85764, Oberschleißheim, Germany. andreas.sing@lgl.bayern.de.
Bavarian SARS-CoV-Public Health Laboratory and Epidemiology Team
Institute of Bioinformatics and Systems Biology · DEBayerisches Landesamt für Gesundheit und Lebensmittelsicherheit · DELudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Bavarian Influenza Sentinel (BIS) monitors the annual influenza season by combining virological and epidemiological data. The 2019/2020 influenza season overlapped with the beginning COVID-19 pandemic thus allowing to investigate whether there was an unnoticed spread of SARS-CoV-2 among outpatients with acute respiratory infections in the community prior to the first COVID-19 cluster in Bavaria. Therefore, we retrospectively analysed oropharyngeal swabs obtained in BIS between calendar week (CW) 39 in 2019 and CW 14 in 2020 for the presence of SARS-CoV-2 RNA by RT-PCR. 610 of all 1376 BIS swabs-contained sufficient material to test for SARS-CoV-2, among them 260 oropharyngeal swabs which were collected prior to the first notified German COVID-19 case in CW 04/2020. In none of these swabs SARS-CoV-2 RNA was detected suggesting no SARS-CoV-2 spread prior to late January 2020 in Bavaria.

Indexed as

COVID-19GermanyHumansPandemicsRetrospective StudiesRNA, ViralSARS-CoV-2RNA, ViralCOVID-19InfluenzaRT-PCRSARS-CoV-2Surveillance

Identifiers

PMID33891281
PMCPMC8063574
OpenAlexW3152714598

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.