Evidence map›Paper›PMID 30978620›Full record

ArticleJournal of clinical virology : the official publication of the Pan American Society for Clinical Virology2019

Identification of influenza C virus in young South Korean children, from October 2013 to September 2016.

Han Sol Lee, Sooyeon Lim, Ji Yun Noh, Joon Young Song, Hee Jin Cheong, Jung Hwa Lee, Sung Il Woo, Woo Joo Kim

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Influenza C virus in humans and animals.Clinical and experimental vaccine research · 2025
    Review
  3. Article
  4. Article
  5. Article
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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 at 2 institutions in 2 countries.

Han Sol LeeDivision of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea.
Sooyeon LimDivision of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea; Division of Brain Korea 21 Program for Biomedicine Science, College of Medicine, Korea University, Seoul, South Korea.
Ji Yun NohDivision of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea.
Joon Young SongDivision of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea.
Hee Jin CheongDivision of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea; Asia Pacific Influenza Institute, Korea University College of Medicine, Seoul, South Korea.
Jung Hwa LeeDepartment of Pediatrics, Korea University College of Medicine, Seoul, South Korea.
Sung Il WooDepartment of Pediatrics, Chungbuk National University Hospital and College of Medicine, Cheongju, South Korea.
Woo Joo KimDivision of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea; Asia Pacific Influenza Institute, Korea University College of Medicine, Seoul, South Korea. Electronic address: wjkim@korea.ac.kr.
Korea University · KRChungbuk National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInfluenza C virus has been largely neglected, compared to influenza A orB viruses, and is not routinely tested in clinical practices. However, several studies have indicated that influenza C virus causes severe acute respiratory illness and pneumonia in all ages.

objectiveWe conducted a study to identify influenza C virus among young children in South Korea. STUDY

designFrom October 2013 to September 2016, 973 young children with influenzalike illness (ILI) were enrolled at three university hospitals. We tested nasopharyngeal samples for 16 types of respiratory viruses. Among the tested samples, 564 were positive for one or more respiratory viruses. Except for the samples where 16 types of respiratory viruses were found, 409 negative samples were examined for the presence of influenza C virus, using a matrix gene specific primer set.

resultsAmong 409 nasopharyngeal samples, five influenza C viruses were detected. The manifestation of influenza C virus infection in young children was observed acute respiratory illness, such as fever, rhinorrhea, and cough, but no pneumonia or severe respiratory illness. Nucleotide sequencing was conducted and a phylogenetic tree was generated. We found that C/Sao Paulo/387/82-like lineage viruses circulated in South Korea, and the fully sequenced virus (C/Seoul/APD462/2015) was closely related to C/Victoria/2/2012 and C/Tokyo/4/2014 strains.

conclusionsThis study was the first report of influenza C virus detection in South Korea. Although severe illness was not observed in this study, we suggest the necessity for influenza C virus testing in pediatric patients with ILI, considering other reports of severe illnesses caused by influenza C virus infections.

Indexed as

GammainfluenzavirusHospitals, UniversityHumansInfantInfluenza, HumanNasopharynxPhylogenyRepublic of KoreaRespiratory Tract InfectionsRNA, ViralSeasonsSequence Analysis, DNARNA, ViralInfluenza C virusPhylogenetic analysisSouth Korea

Identifiers

PMID30978620
PMCPMC7106441
OpenAlexW2924470762

What OpenQuestion holds

Textmetadata
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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.