Evidence map›Paper›PMID 41083540›Full record

ArticleScientific reports2025

Seasonal trends and molecular evolution of SARS-CoV-2 in acute respiratory illness patients during the fifth year of COVID-19, Thailand.

Jiratchaya Puenpa, Preeyaporn Vichaiwattana, Ratchadawan Aeemjinda, Lakkhana Wongsrisang, Sumeth Korkong, Jen-Ren Wang, Nasamon Wanlapakorn, Yong Poovorawan

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. 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

8 authors.

Jiratchaya PuenpaDepartment of Pediatrics, Faculty of Medicine, Center of Excellence in Clinical Virology, Chulalongkorn University, Bangkok, Thailand.
Preeyaporn VichaiwattanaDepartment of Pediatrics, Faculty of Medicine, Center of Excellence in Clinical Virology, Chulalongkorn University, Bangkok, Thailand.
Ratchadawan AeemjindaDepartment of Pediatrics, Faculty of Medicine, Center of Excellence in Clinical Virology, Chulalongkorn University, Bangkok, Thailand.
Lakkhana WongsrisangDepartment of Pediatrics, Faculty of Medicine, Center of Excellence in Clinical Virology, Chulalongkorn University, Bangkok, Thailand.
Sumeth KorkongDepartment of Pediatrics, Faculty of Medicine, Center of Excellence in Clinical Virology, Chulalongkorn University, Bangkok, Thailand.
Jen-Ren WangDepartment of Medical Laboratory Science and Biotechnology, National Cheng Kung University, Tainan, Taiwan.
Nasamon WanlapakornDivision of Academic Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand. nasamon.w@chula.ac.th.
Yong PoovorawanDepartment of Pediatrics, Faculty of Medicine, Center of Excellence in Clinical Virology, Chulalongkorn University, Bangkok, Thailand. yong.p@chula.ac.th.

Funding

the Health Systems Research Institute HSRI No. 68-026
6 · The paper itself

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is relentlessly evolving, with emerging variants exhibiting heightened transmissibility and immune escape capabilities. Understanding the genetic diversity and seasonal transmission dynamics of SARS-CoV-2 in Thailand is crucial for implementing effective public health interventions. This study aims to elucidate the genetic diversity and seasonal transmission patterns of SARS-CoV-2 among patients with acute respiratory illness in Thailand in 2024. Among 8,096 Acute Respiratory Infection (ARI) cases analyzed, 1,152 samples tested positive for SARS-CoV-2, resulting in a positivity rate of 14.2%. The majority of infections occurred during a significant Outbreak from late summer to early rainy season, particularly between April and June, accounting for nearly 49% of all positive cases. The highest infection rate occurred in adults aged 31-40 years, with no significant association between gender and infection status (p = 0.583). Extensive genomic sequencing identified over seven distinct SARS-CoV-2 lineages, with the JN.1 lineage dominating early in the year. Recombinant variants, notably XEC, XDV.1, and XDY, emerged as significant contributors to the evolving landscape, reaching a prevalence of 57.1% by December. Phylogenetic analyses demonstrated a consistent evolutionary rate and identified critical emergence dates for new lineages, underscoring the virus's ongoing evolution in Thailand. Our findings emphasize the necessity of continuous genomic surveillance for tracking variant transmission dynamics and managing public health responses effectively. Furthermore, the evolving genetic landscape of SARS-CoV-2 highlights the urgent need for adaptive vaccination strategies aligned with seasonal transmission patterns in Thailand.

Indexed as

COVID-19Evolution, MolecularSARS-CoV-2AdolescentAdultAgedChildChild, PreschoolFemaleGenetic VariationHumansInfantMaleMiddle AgedPhylogenySeasonsCOVID-19Genomic surveillanceMolecular evolutionSARS-CoV-2Seasonal transmissionThailand

Identifiers

PMID41083540
PMCPMC12518673

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LicenceCC BY-NC-ND
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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.