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We analyzed 1,303 SARS-CoV-2 whole-genome sequences from Vietnam, and found the Alpha and Delta variants were responsible for a large nationwide outbreak of COVID-19 in 2021. The Delta variant was confined to the AY.57 lineage and caused >1.7 million infections and >32,000 deaths. Viral transmission was strongly affected by nonpharmaceutical interventions.
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http://dx.doi.org/10.3201/eid2905.221787 | DOI Listing |
Pediatr Infect Dis J
September 2025
From the School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia.
Background: Obesity was a risk factor for severe COVID-19 in children during early outbreaks of ancestral SARS-CoV-2 and the Delta variant. However, the relationship between obesity and COVID-19 severity during the Omicron wave remains unclear.
Methods: This multicenter, observational study included polymerase chain r eaction-confirmed SARS-CoV-2-infected children and adolescents from Australia, Brazil, Italy, Portugal, Switzerland, Thailand, the United Kingdom and the United States hospitalized between January 1, 2020, and March 31, 2022.
In Vitro Cell Dev Biol Anim
September 2025
Postgraduate Program in Physiological Sciences (PPGCF), State University of Ceará (UECE), Fortaleza, CE, Brazil.
The present study aimed to (1) evaluate the effects of different concentrations of the polysaccharide extract of Cissus sicyoides (PE-Cs) during in vitro culture of preantral follicles included in goat ovarian tissue on (i) follicular morphology and activation, (ii) ovarian stromal density, (iii) follicular and oocyte diameters, (iv) antioxidant enzymes activity (SOD, CAT, and GPx), (v) quantification of MDA, thiol, and nitrite levels; as well as to (2) measure the total antioxidant capacity of the extract. The ovarian cortex fragments were cultured at 39 °C in a humidified atmosphere with 5% CO for 6 d in alpha-modified minimum essential medium (αMEM) supplemented with insulin, transferrin, and selenium; hypoxanthine; glutamine; and bovine serum albumin, which was called αMEM alone or added of PE-Cs at 20, 40, or 80 µg/mL. At the end of the culture period, a reduction in the percentage of normal follicles in all treatments using PE-Cs compared to fresh control and αMEM.
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2025
School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
The COVID-19 pandemic remains a global health crisis, with successive SARS-CoV-2 variants exhibiting enhanced transmissibility and immune evasion. Notably, the Omicron variant harbors extensive mutations in the spike protein's receptor-binding domain (RBD), altering viral fitness. While temperature is a critical environmental factor modulating viral stability and transmission, its molecular-level effects on variant-specific RBD-human angiotensin-converting enzyme 2 (hACE2) interactions remain underexplored.
View Article and Find Full Text PDFFood Res Int
November 2025
School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Shaanxi Research Institute of Agricultural Products Processing Technology, Xi'an 710021, China. Electronic address:
Goat milk is prized for its nutritional value, but the illegal addition of δ-decanolactone to enhance flavor poses risks to product integrity and safety. This study employed a tripartite multi-omics framework integrating metabolomics, lipidomics, and proteomics, combined with FTIR and CLSM to systematically elucidate the multifaceted effects of δ-decanolactone on goat milk. Chemometric and bioinformatic pipelines identified dysregulated molecules and pathways, while molecular docking validated interactions with key targets.
View Article and Find Full Text PDFJMIR Res Protoc
September 2025
Department of Public Health, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
Background: Various media are used to enhance public understanding about diseases. While mobile health apps are widely used, there is little proof for using such apps to raise awareness of skin diseases.
Objective: We intend to develop an app, called DEDIKASI-app, to raise awareness of skin diseases, including leprosy.