Several vaccines against COVID-19 use nanoparticles to protect the antigen cargo (either proteins or nucleic acids), increase the immunogenicity and ultimately the efficacy. The characterization of these nanomedicines is challenging due to their intrinsic complexity and requires the use of multidisciplinary techniques and competencies. The accurate characterization of nanovaccines can be conceptualized as a combination of physicochemical, immunological and toxicological assays. This will help to address key challenges in the preclinical characterization, will guide the rapid development of safe and effective vaccines for current and future health crises, and will streamline the regulatory process.
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http://dx.doi.org/10.1038/s41565-022-01129-w | DOI Listing |
J Infect Dis
January 2025
Moderna, Inc., Cambridge, MA 02142, USA.
Background: mRNA-1283 is an investigational COVID-19 mRNA vaccine encoding the receptor-binding and N-terminal domains of the SARS-CoV-2 spike protein in contrast to the original mRNA-1273, which encodes the full-length spike protein.
Methods: A phase 2a, dose-ranging, observer-blind, randomized study (NCT05137236) conducted in adults (≥18 years) previously vaccinated with mRNA-1273 evaluated the safety and immunogenicity of a single dose of mRNA-1283 (2.5, 5, and 10 µg) and its bivalent formulation, mRNA-1283.
Drug Saf
January 2025
Pfizer (Worldwide Medical & Safety), New York, NY, USA.
Eur Arch Otorhinolaryngol
January 2025
Department of Otolaryngology-Head and Neck Surgery, Temerty Faculty of Medicine, University of Toronto, 6 Queen's Park Crescent West, Suite 120, Toronto, ON, M5S 3H2, Canada.
Purpose: The SARS-CoV-2 vaccination has reduced COVID-19 infection, though facial nerve palsy (FNP) has emerged as a notable side effect of the vaccine. We evaluated the current literature on the clinical presentation and outcomes of FNP related to COVID-19 vaccination.
Methods: A comprehensive search of seven databases was conducted for studies up to January 2023.
Healthcare (Basel)
December 2024
CIEC-Research Centre on Child Studies, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
Unlabelled: In a period globally known as long COVID, several post-acute infection sequelae and vaccination effects have been discussed.
Objectives: This study aimed to identify the effects of COVID-19 infection and vaccines on the menstrual cycle of adolescents attending higher education and to verify the association between personal health factors and changes in their menstrual cycle after contact with the virus SARS-CoV-2 via infection or via the vaccine.
Methods: A cross-sectional study was conducted using a questionnaire for data collection, applied online to Portuguese higher education adolescents aged between 18 and 24.
Int J Rheum Dis
January 2025
Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.
Objectives: To determine the prevalence of self-reported delayed adverse events (DAEs), major AEs, and flares following COVID-19 vaccinations among patients with autoimmune rheumatic diseases (AIRDs) in Malaysia.
Methodology: An electronically validated survey from the COVID-19 vaccination in autoimmune diseases (COVAD) study group was distributed in July 2021 to patients with autoimmune diseases and healthy controls (HCs). The survey collected data on DAEs (any AE that persisted or occurred after 7 days of vaccination), any early or delayed major adverse events (MAEs), and flares following COVID-19 vaccination.
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