Evidence map›Paper›PMID 34562548›Full record

ArticleThe Journal of hospital infection2021

Impact of the COVID-19 pandemic on the surveillance of antimicrobial resistance.

A Hirabayashi, T Kajihara, K Yahara, K Shibayama, M Sugai

Abstract read
In one paragraph

Article in The Journal of hospital infection, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

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

  1. Antibiotic resistance associated with the COVID-19 pandemic: a systematic review and meta-analysis.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2023
    Pooled it
  2. Pooled it
  3. Trends, Seasonality, and the Impact of COVID-19 on ClinicalAntibiotics (Basel, Switzerland) · 2026
    Article
  4. Serotype distribution and antimicrobial resistance ofJournal of medical microbiology · 2025
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  17. Journal of clinical medicine · 2023
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  20. Trends inAntibiotics (Basel, Switzerland) · 2023
    Review
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

5 authors.

A HirabayashiAntimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan. Electronic address: akihira@nih.go.jp.
T KajiharaAntimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan. Electronic address: kajihara@nih.go.jp.
K YaharaAntimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan. Electronic address: k-yahara@nih.go.jp.
K ShibayamaAntimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan; Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan.
M SugaiAntimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe impact of the coronavirus disease (COVID-19) pandemic on antimicrobial resistance (AMR) is a major concern.

aimTo compare the number of patients and isolation rate of antimicrobial-resistant bacteria before and after the beginning of the COVID-19 pandemic using the comprehensive national surveillance data.

methodsWe utilized comprehensive surveillance data, collected in the Japan Nosocomial Infections Surveillance programme, which included a total of 16.7 million samples of 5.9 million tested patients from >1300 hospitals. We compared the number of patients and isolation rate of five bacteria between 2019 and 2020, including antimicrobial-susceptible and -resistant bacteria of Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa.

findingsThe number of patients and isolation rate of S. aureus and meticillin-resistant S. aureus decreased slightly; those of S. pneumoniae and penicillin-resistant S. pneumoniae decreased by 60%; and those of third-generation cephalosporin-resistant K. pneumoniae increased. The isolation rate of the remaining bacteria apparently increased, although the number of patients decreased. This was due to a substantial decrease in the total number of tested patients (the denominator of the isolation rate), which was larger than that of the number of patients (the numerator of the isolation rate). Consistent results were obtained when the same data were re-aggregated using the procedure of the World Health Organization Global Antimicrobial Resistance Surveillance System, demonstrating the general importance of this problem.

conclusionSurveillance data during the COVID-19 pandemic must be carefully interpreted based on examination of the numerator, denominator and background factors that affect the denominator.

Indexed as

Anti-Infective AgentsCOVID-19Methicillin-Resistant Staphylococcus aureusAnti-Bacterial AgentsDrug Resistance, BacterialHumansMicrobial Sensitivity TestsPandemicsSARS-CoV-2Staphylococcus aureusAnti-Bacterial AgentsAnti-Infective AgentsAntimicrobial resistanceCOVID-19SurveillanceWHO-GLASS

Identifiers

PMID34562548
PMCPMC8457641

What OpenQuestion holds

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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.