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3D food printers facilitate novel customization of the physicochemical properties of food. This study aimed to investigate the impact of storage conditions on the inactivation of the human norovirus surrogate, Tulane virus (TuV), within 3D printed foods. TuV-inoculated protein cookie food ink (∽ 4 log PFU/g) was distributed into 18 3D food printer capsules (50 g each); half immediately underwent extrusion. Storage of the capsules and printed food products at 20 °C (0, 6, 12, and 24 h), 4 °C (0, 1, 3, and 5d), and - 18 °C (0, 1, 3, and 5d) was completed before analysis for TuV via plaque assays in addition to aerobic plate count, yeast and mold counts, and pH and water activity (a) measurements. A significant 3-way interaction effect was observed between time, temperature, and storage method (capsule/print) (p = 0.006). Significant findings include: (1) A greater reduction in virions was observed in capsules after 24 h at 20 °C and (2) a substantial reduction in virions at 4 °C from day 0 to day 1 was observed, independent of storage method. Microbial indicators remained steady across temperatures, with storage temperature significantly impacting pH and a. A significant two-way interaction effect (p = 0.006) was found between microorganism type (yeast/aerobic counts) and temperature. This research seeks to provide insights for the food industry and regulatory bodies in crafting guidelines for the safe storage and handling of 3D printed foods and inks.
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http://dx.doi.org/10.1007/s12560-024-09597-0 | DOI Listing |
Am J Pathol
September 2025
Morrissey College of Arts and Sciences, Biology Department, Boston College, Chestnut Hill, MA, USA. Electronic address:
A challenge to eradicate HIV is the CNS reservoir and unknown mechanisms-pathways by which infected macrophages can exit. We used intracisternal (i.c.
View Article and Find Full Text PDFAm J Trop Med Hyg
September 2025
Department of Tropical Medicine and Infectious Diseases, Tulane University Celia, Scott Weatherhead School of Public Health and Tropical Medicine, New Orleans, Louisiana.
Respiratory syncytial virus (RSV) is a leading cause of acute lower respiratory tract infections in children under 5 years of age, resulting in significant morbidity and mortality worldwide. The aim of the current study is to investigate the prevalence and clinical features of RSV disease in hospitalized infants in Sierra Leone. A prospective study was conducted on children under 2 years of age who were hospitalized at Kenema Government Hospital between October 1, 2020, and January 31, 2023.
View Article and Find Full Text PDFMicroorganisms
July 2025
Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA.
Interferon-induced transmembrane protein 3 (IFITM3) is a member of the family of interferon-stimulated genes (ISGs) that inhibits a diverse array of enveloped viruses which enter host cells by endocytosis. Porcine reproductive and respiratory syndrome virus (PRRSV) is an enveloped RNA virus causing significant economic losses to the swine industry. Very little is known regarding how IFITM3 restricts PRRSV.
View Article and Find Full Text PDFAIDS Res Hum Retroviruses
August 2025
Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, Florida, USA.
Adeno-associated virus (AAV)-vectored delivery of HIV-1 broadly neutralizing antibodies (bNAbs) holds promise for achieving durable HIV-1 immunity in a practical and scalable way, yet AAV-encoded bNAbs often elicit antidrug antibody (ADA) responses that limit transgene expression. Engagement of T cell-expressed CD28 with its ligands CD80/CD86 on professional antigen-presenting cells is crucial for initiating adaptive immunity. Because the immunoglobulin-fusion protein CTLA4Ig can outcompete CD28 for binding to CD80/CD86, CTLA4Ig can inhibit T cell activation and prevent immune responses.
View Article and Find Full Text PDFJ Virol
August 2025
Department of Surgery, Division of Surgical Outcomes and Precision Medicine Research, University of Minnesota, Minneapolis, Minnesota, USA.
Zika virus (ZIKV) infection typically results in mild symptoms; however, it can cause elevated inflammation in the CNS and the development of more serious conditions, including severe neurological syndromes. Previous studies have demonstrated that ZIKV infection may cause mucosal dysfunction as well as elevated inflammation in rectal and vaginal mucosal tissue. Here, we used non-human primate (NHP) models and clinical specimens from ZIKV-infected humans to examine microbiome, inflammation, and microbial translocation in the gut, blood, and CNS.
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