New and reemerging infectious diseases call for innovative and efficient control strategies of which fast vaccine design and development represent an important element. In emergency situations, when time is limited, identification and use of correlates of protection (COPs) may play a key role as a strategic tool for accelerated vaccine design, testing, and licensure. We propose that general rules for COP-based vaccine design can be extracted from the existing knowledge of protective immune responses against a large spectrum of relevant viral and bacterial pathogens. Herein, we focus on the applicability of this approach by reviewing the established and up-coming COPs for influenza in the context of traditional and a wide array of new vaccine concepts. The lessons learnt from this field may be applied more generally to COP-based accelerated vaccine design for emerging infections.
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http://dx.doi.org/10.4161/hv.28639 | DOI Listing |
Diagn Microbiol Infect Dis
December 2024
Department of Molecular Epidemiology, National Institute of Malaria Research, Sector-8, Dwarka, Delhi 110077, India. Electronic address:
Microsatellites, or simple sequence repeats (SSRs), are short tandemly repeated DNA sequences widely dispersed throughout the genome. Their high variability, co-dominant inheritance, and ease of detection make them valuable genetic markers, frequently used to study genetic diversity, population structure, and evolutionary processes. In the context of malaria research, particularly with Plasmodium falciparum (P.
View Article and Find Full Text PDFVirology
December 2024
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV), Departamento de Biotecnología y Bioingeniería, Av. Instituto Politécnico Nacional 2508, Mexico City, 07360, Mexico; CINVESTAV, Programa de Doctorado Transdisciplinario en Desarrollo Científico y Tecnológico para la Sociedad, Mexico. Electronic address:
COVID-19 infections continue due to accessibility barriers to vaccines and the emergence of SARS-CoV-2 variants. An effective, safe, accessible, and broad-spectrum vaccine is still needed to control the disease. We developed a multivalent protein subunit vaccine comprising antigens designed from a non-N-glycosylated region of the receptor-binding domain of the spike protein of SARS-CoV-2.
View Article and Find Full Text PDFVaccine
December 2024
Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Center for Disease Prevention and Control, Beijing, China; Beijing Research Center for Respiratory Infectious Diseases, Beijing, China. Electronic address:
Introduction: The objective of our study was to estimate the influenza vaccine effectiveness for 2023/24 epidemic of co-circulating influenza A(H3N2) and B(Victoria) viruses in Beijing, China.
Methods: The surveillance-based study included all swabbed patients through influenza virological surveillance in Beijing, between October 2023 and March 2024. A Test-Negative Design(TND) was used to estimate influenza vaccine effectiveness(VE) against medically- attended laboratory-confirmed influenza in outpatient settings, also calculated the influenza vaccination rate(IVR).
Vaccine
December 2024
Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, 100 Piedmont Ave SE, Atlanta, GA 30303, USA. Electronic address:
The immune memory imprinted during an individual's initial influenza exposure (influenza imprinting) has long-lasting effects on the host's response to subsequent influenza infections and vaccinations. Here, we investigate how different influenza virus imprinting impacts the immune responses to subunit, inactivated virus, and protein-based nanoparticle vaccines in Balb/c mice. Our results indicated a phylogenetic distance-dependent effect of influenza imprinting on subunit hemagglutinin (HA) or formalin-inactivated (FI) virus vaccine immunizations.
View Article and Find Full Text PDFImmunol Rev
December 2024
Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA.
The SARS-CoV-2 spike (S) protein has undergone significant evolution, enhancing both receptor binding and immune evasion. In this review, we summarize ongoing efforts to develop antibodies targeting various epitopes of the S protein, focusing on their neutralization potency, breadth, and escape mechanisms. Antibodies targeting the receptor-binding site (RBS) typically exhibit high neutralizing potency but are frequently evaded by mutations in SARS-CoV-2 variants.
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