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COVID, Volume 5, Issue 12

2025 December - 15 articles

Cover Story: A multicenter prospective cohort study conducted in ten countries across Latin America and Europe. It included patients over 18 years of age with confirmed SARS-CoV-2 infection who required ICU admission. A multivariable logistic regression analysis and propensity score matching (PSM) were performed to determine the association between methylprednisolone treatment and RTI-ICU. Methylprednisolone treatment is associated with an increased risk of RTI-ICU in critically ill patients with COVID-19. RTI-ICU was linked to higher mortality, a greater need for invasive mechanical ventilation, prolonged ICU stay, elevated leukocyte and C-reactive protein levels, and a higher comorbidity burden. However, methylprednisolone may not be the sole factor explaining these differences, as residual confounding related to baseline disease severity and comorbidities could have influenced the outcomes. View this paper
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Articles (15)

  • Article
  • Open Access
470 Views
23 Pages

Press and School Violence: Subjective Theories in the Post-Pandemic Narratives in Chilean Online Newspapers

  • Fabiana Rodríguez-Pastene,
  • Sara Sorza,
  • Pablo J. Castro-Carrasco,
  • Claudia Carrasco-Aguilar,
  • Verónica Gubbins,
  • Vladimir Caamaño-Vega and
  • Martina Zelaya

18 December 2025

This study examines how the explanations about school violence are constructed in Chilean online newspapers after the country—which had the longest period of school closures—returned to in-person classes. During early 2022, several compla...

  • Review
  • Open Access
2,206 Views
26 Pages

Neurological Sequelae of Long COVID: Mechanisms, Clinical Impact and Emerging Therapeutic Insights

  • Muhammad Danial Che Ramli,
  • Beevenna Kaur Darmindar Singh,
  • Zakirah Zainal Abidin,
  • Athirah Azlan,
  • Amanina Nurjannah,
  • Zaw Myo Hein,
  • Che Mohd Nasril Che Mohd Nassir,
  • Rajesh Thangarajan,
  • Noor Aishah Bt. Mohammed Izham and
  • Suresh Kumar

16 December 2025

The COVID-19 pandemic has demonstrated that its effects go far beyond the initial respiratory illness, with many survivors experiencing lasting neurological problems. Some patients develop a condition known as Long COVID, or post-acute sequelae of SA...

  • Article
  • Open Access
685 Views
13 Pages

Gene-Level Analyses of Novel Olfactory-Related Signal from Severe SARS-CoV-2 GWAS Reveal Association with Disease Mortality

  • Yu Chen Zhao,
  • Xinan Wang,
  • Yujia Lu,
  • Rounak Dey,
  • Yuchen Liu,
  • Francesca Giacona,
  • Elizabeth A. Abe,
  • Emma White,
  • Li Su and
  • David C. Christiani
  • + 4 authors

14 December 2025

Importance: The coronavirus disease 2019 (COVID-19) was the third leading cause of mortality in the United States for three years in a row. The genetic contributions to disease severity remain unclear and many previously identified single nucleotide...

  • Article
  • Open Access
924 Views
9 Pages

14 December 2025

Efforts have been made to develop a case definition for Long COVID, with results differing on whether the case definition should be specific and exclusive, or broad and easily generalizable. Each of these methods has been subject to limitations. As m...

  • Article
  • Open Access
521 Views
14 Pages

Association Between Methylprednisolone and the Increase of Respiratory Infections in COVID-19 Patients in the Intensive Care Unit

  • Eduardo Tuta-Quintero,
  • Alirio Bastidas,
  • Esteban García-Gallo,
  • Emilio Díaz,
  • María Bodí,
  • Jordi Solé-Violán,
  • Ricard Ferrer,
  • Antonio Albaya-Moreno,
  • Lorenzo Socias and
  • Luis Felipe Reyes
  • + 6 authors

8 December 2025

Background: This study aimed to assess whether methylprednisolone treatment, while effective in reducing COVID-19 mortality, increases the risk of intensive-care-unit-acquired respiratory tract infections (RTI-ICU) in critically ill patients. Methods...

  • Article
  • Open Access
1,362 Views
17 Pages

Temporal Profiling of SARS-CoV-2 Variants Using BioEnrichPy: A Network-Based Insight into Host Disruption and Neurodegeneration

  • Sreelakshmi Kalayakkattil,
  • Ananthakrishnan Anil Indu,
  • Punya Sunil,
  • Haritha Nekkanti,
  • Smitha Shet and
  • Ranajit Das

5 December 2025

SARS-CoV-2, the virus responsible for COVID-19, disrupts human cellular pathways through complex protein–protein interaction, contributing to disease progression. As the virus has evolved, emerging variants have exhibited differences in transmi...

  • Brief Report
  • Open Access
374 Views
7 Pages

Evaluation of Self-Collected Mouth Rinse Specimens for Coronavirus Disease 2019 Testing: A Pilot Study

  • Kento Fukano,
  • Junko S. Takeuchi,
  • Azusa Kamikawa,
  • Wataru Sugiura,
  • Junko Terada-Hirashima and
  • Moto Kimura

4 December 2025

Saliva specimens are widely used for coronavirus disease 2019 (COVID-19) testing using RT-qPCR due to their advantages over nasopharyngeal swabs of being non-invasive and self-collectable. However, saliva collection can be time-consuming in individua...

  • Article
  • Open Access
554 Views
13 Pages

2 December 2025

Objective: To compare self-reported functioning, disability, and health care-seeking behavior of previously healthy and unhealthy participants after SARS-CoV-2 infection. Design: Cross-sectional design conducted in 2021–2022. Subjects/Patients:...

  • Brief Report
  • Open Access
899 Views
12 Pages

Maternal Mortality During the COVID-19 Pandemic in Tamaulipas, Mexico: A Retrospective Study

  • Hadassa Yuef Martínez-Padrón,
  • Ariadne Guadalupe Quintero-Zapata,
  • Ares Duvaliere Buenfild-Saldivar,
  • Jorge Luis Valdéz-Báez,
  • Elsa Verónica Herrera-Mayorga and
  • Rodrigo Vargas-Ruiz

30 November 2025

Background: Women are at increased risk of developing severe morbidity and mortality during pregnancy, childbirth, and the puerperium, especially in developing countries. In Mexico, during 2020, 27.5% of maternal deaths were attributed to COVID-19. T...

  • Review
  • Open Access
805 Views
19 Pages

Documenting Clinical Outcomes Assessed in Outpatients with COVID-19: A Scoping Review of Randomized Controlled Trials

  • Chia Siang Kow,
  • Dinesh Sangarran Ramachandram,
  • Barbara R. Conway and
  • Syed Shahzad Hasan

30 November 2025

The COVID-19 pandemic initially focused clinical efforts on hospitalized patients. However, as the pandemic progressed, attention shifted to outpatients who often experience milder symptoms yet still contribute to viral transmission. This scoping rev...

  • Systematic Review
  • Open Access
3,165 Views
10 Pages

29 November 2025

Long COVID, a condition marked by persistent symptoms following COVID-19 infection, poses significant challenges in regard to clinical management. While emerging pharmacological treatments have demonstrated limited benefits in isolated studies, clini...

  • Article
  • Open Access
687 Views
11 Pages

Factors Associated with the Presence of Post-COVID Syndrome in Older Patients with Arterial Hypertension

  • Venera Kudabaeva,
  • Timur Tastaibek,
  • Almagul Mansharipova,
  • Arystan Seidalin and
  • Nargiza Nassyrova

28 November 2025

Background: Diagnosing post-COVID syndrome (PCS) in older adults with hypertension is difficult due to heterogeneity and multimorbidity. We aimed to identify factors associated with PCS. Methods: An observational study was conducted from June 2024 to...

  • Study Protocol
  • Open Access
1,566 Views
11 Pages

Therapeutic Potential of Repetitive Transcranial Magnetic Stimulation (TMS) in Long COVID: A Systematic Review and Meta-Analysis Protocol

  • Nilihan E. M. Sanal-Hayes,
  • Kate Slade,
  • Marie Mclaughlin,
  • Ethan Berry,
  • Emma Swift and
  • Lawrence D. Hayes

27 November 2025

The cumulative global incidence of long COVID is around 400 million individuals, yet effective treatment options remain limited. A recent systematic review published in 2025 highlighted promising results for non-invasive brain stimulation in alleviat...

  • Article
  • Open Access
636 Views
9 Pages

A Retrospective Look at Early COVID-19 Treatment and Outcomes in Two Tertiary Centers in Türkiye and Bosnia & Herzegovina

  • Rahima Jahic,
  • Mustafa Asim Demirkol,
  • Sefika Umihanic,
  • Jasmina Smajic,
  • Sekib Umihanic,
  • Alma Trnacevic,
  • Amra Adrovic Yildiz,
  • Kamber Kasali,
  • Ayhan Olcay and
  • Onur Yolay
  • + 1 author

21 November 2025

During the early months of the COVID-19 pandemic, treatment protocols varied substantially among countries and even between hospitals. This study compared the clinical characteristics, management strategies, and outcomes of hospitalized COVID-19 pati...

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COVID - ISSN 2673-8112