98%
921
2 minutes
20
Importance: Vaccine breakthrough by an emergent SARS-CoV-2 variant poses a great risk to global public health.
Objective: To determine the SARS-CoV-2 variant responsible for 6 cases of vaccine breakthrough.
Design: Nasopharyngeal swabs from suspected vaccine breakthrough cases were tested for SARS-CoV-2 by qPCR for Wuhan-Hu1 and Alpha variant. Positive samples were then sequenced by Swift Normalase Amplicon Panels to determine the causal variant.
Setting: Transmission event occurred at events surrounding a wedding outside of Houston, TX. Two patients from India, likely transmitted the Delta variant to other guests.
Participants: Following a positive SARS-CoV-2 qPCR test at a third-party site, six fully vaccinated patients were investigated. Three males and three females ranged from 53 to 69 years old. One patient suffered from diabetes while three others were classified as overweight. No significant other comorbidities were identified. None of the patients had a history of failed vaccination.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8282118 | PMC |
http://dx.doi.org/10.1101/2021.06.28.21258780 | DOI Listing |
Front Med (Lausanne)
August 2025
Department of Pathology and Laboratory Diagnosis, College of Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia.
Tuberculosis (TB) remains one of the leading causes of infectious disease mortality worldwide, increasingly complicated by the emergence of drug-resistant strains and limitations in existing diagnostic and therapeutic strategies. Despite decades of global efforts, the disease continues to impose a significant burden, particularly in low- and middle-income countries (LMICs) where health system weaknesses hinder progress. This comprehensive review explores recent advancements in TB diagnostics, antimicrobial resistance (AMR surveillance), treatment strategies, and vaccine development.
View Article and Find Full Text PDFBMJ Public Health
August 2025
Epidemiology and Data Management Unit, Division of Intramural Research, National Institute of Allergy and Infectious Diseases Division of Intramural Research, Bethesda, Maryland, USA.
Introduction: Immune-deficient/disordered people (IDP) elicit a less robust immune response to COVID-19 vaccination than the general US population. Despite millions of IDP at presumed elevated risk, few population-level studies of IDP have been conducted in the Omicron era to evaluate breakthrough infection-related outcomes.
Methods: We followed a prospective cohort of 219 IDP and 63 healthy volunteers (HV) in the USA from April 2021 (Alpha variant peak) to July 2023 (Omicron XBB variant peak).
Vaccine
September 2025
Department of Paediatric Immunology and Rheumatology, Wilhelmina Children's Hospital/ University Medical Center Utrecht, Utrecht, the Netherlands; Faculty of Medicine, Utrecht University, Utrecht, the Netherlands.
Background: Pediatric patients with autoimmune and inflammatory diseases often require immunosuppressive therapy, which increases their susceptibility to infections, including varicella-zoster virus (VZV). While the live attenuated varicella vaccine is contraindicated in most immunocompromised children, the recombinant subunit vaccine, Shingrix, may offer an alternative preventive strategy. However, data on its safety, immunogenicity, and efficacy in pediatric VZV-naïve patients remain limited.
View Article and Find Full Text PDFbioRxiv
August 2025
Department of Medicine, Division of Allergy and Clinical Immunology, Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA, Broad Institute of MIT, and Harvard, Cambridge, MA 02139, USA, Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA.
A key goal of vaccinology is to train the immune system to combat current pathogens while simultaneously preparing it for future evolved variants. Understanding factors contributing to anticipatory breadth, wherein affinity maturation against an ancestral strain yields neutralization capacity against evolved variants, is therefore of great importance. Here, we investigated the mechanism of anticipatory breadth development in a public antibody family targeting the functionally restricted ACE2 binding site on SARS-CoV-2.
View Article and Find Full Text PDFFront Immunol
September 2025
Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
Non-small cell lung cancer (NSCLC) remains a leading cause of cancer-related mortality worldwide, with only modest improvements in survival despite advances in conventional therapies. Cell-based immunotherapy, which utilizes ex vivo expanded or genetically modified immune cells, has emerged as a promising therapeutic alternative. Approaches such as natural killer (NK) cells, tumor-infiltrating lymphocytes (TILs), dendritic cell (DC)-based vaccines, cytokine-induced killer (CIK) cells, and chimeric antigen receptor T (CAR-T) cells have shown encouraging potential in preclinical and early clinical studies.
View Article and Find Full Text PDF