SARS-COV-2 : During the COVID-19 pandemic, mRNA-based vaccines were approved for the first time. The mRNA encodes for the viral spike protein, leading to the development of specific antibodies and T-cells, providing effective protection against severe illness and death from COVID-19. New variants regularly emerge due to rapid viral evolution. Available COVID-19 vaccines can be adapted to circulating variants. For the upcoming winter season, adapted vaccines against the Omicron sublineage JN.1 have been recommended. SEASONAL INFLUENZA : Seasonal influenza viruses change significantly with regard to their antigenic properties each season, necessitating updated vaccines. The WHO predicts and recommends which genetic variants should be included in the vaccine. Quadrivalent vaccines were recommended previously, but for 2024/2025, trivalent vaccines are advised as the Influenza B/Yamagata lineage has not circulated since 2020. For all people over 60 years of age, a high-dose vaccine is recommended, showing slightly improved efficacy.
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http://dx.doi.org/10.1055/a-2115-0404 | DOI Listing |
BMC Infect Dis
January 2025
Patient-Centered Research, Evidera, London, UK.
Background: Seasonal vaccination is the mainstay of human influenza prevention. Licensed influenza vaccines are regularly updated to account for viral mutations and antigenic drift and are standardised for their haemagglutinin content. However, vaccine effectiveness remains suboptimal.
View Article and Find Full Text PDFJ Am Coll Health
January 2025
Pediatric Infectious Diseases, Anne & Robert Lurie Children's Hospital, Chicago, IL, USA.
College students have cited inconvenience, ease of forgetting, and lack of time as barriers to influenza (flu) vaccine receipt. We hypothesized that "pop-up" clinics and live-attenuated influenza vaccine (LAIV) would facilitate delivery and align with preferences of college students. During the 2023-2024 flu season, undergraduate participants were recruited to receive LAIV at 5 "pop-up" clinics across a large midwestern campus.
View Article and Find Full Text PDFInfluenza Other Respir Viruses
January 2025
Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Background: Seasonal influenza illness and acute respiratory infections can impose a substantial economic burden in low- and middle-income countries (LMICs). We assessed the cost of influenza illness and acute respiratory infections across household income strata.
Methods: We conducted a secondary analysis of data from a prior systematic review of costs of influenza and other respiratory illnesses in LMICs and contacted authors to obtain data on cost of illness (COI) for laboratory-confirmed influenza-like illness and acute respiratory infection.
Nat Med
January 2025
Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, New Haven, CT, USA.
Respiratory syncytial virus (RSV) causes a substantial health burden among infants and older adults. Prefusion F protein-based vaccines have shown high efficacy against RSV disease in clinical trials, offering promise for mitigating this burden through maternal and older adult immunization. Employing an individual-based model, we evaluated the impact of RSV vaccination on hospitalizations and deaths in 13 high-income countries, assuming that the vaccine does not prevent infection or transmission.
View Article and Find Full Text PDFNPJ Vaccines
January 2025
Community Medical Services Division, Clalit Health Services, Tel-Aviv, Israel.
Evidence regarding the high-dose (HD) vaccine's relative vaccine effectiveness (rVE) and absolute benefit in reducing influenza-related hospitalizations compared to the standard-dose (SD) vaccine is warranted. We estimated the adjusted rVE and the number needed to vaccinate (NNV) of the HD vaccine compared to the SD vaccine among Clalit Health Services members aged ≥65 years. Among 418,603 and 393,125 members vaccinated in the 2022-2023 and 2023-2024 influenza seasons, the adjusted rVE was 27% (95% CI: -12% to 61%) for 2022-2023 and 7% (95% CI: -36% to 42%) for 2023-2024, with NNV to prevent one hospitalization event being 2262 (95% CI: 1004 to ∞) and 7662 (95% CI: 1293 to ∞), respectively.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!