scholarly journals Waning Effectiveness of SARS-CoV-2 mRNA Vaccines in Older Adults: A Rapid Review

Author(s):  
Etsuro Nanishi ◽  
Ofer Levy ◽  
Al Ozonoff

The U.S. Centers for Disease Control and Prevention (CDC) and other health agencies have recently recommended a booster dose of COVID-19 vaccines for specific vulnerable groups including adults 65 years and older. There is limited evidence whether vaccine effectiveness in older adults decreases over time, especially against severe COVID-19. We performed a rapid review of published studies available through 04 November 2021 that provide effectiveness data on mRNA vaccines approved/licensed in the United States and identified eight eligible studies which evaluated vaccine effectiveness in older adults. There is evidence of a decline in vaccine effectiveness against both SARS-CoV-2 infection and severe COVID-19 in older adults among studies which analyzed data up to July-October 2021. Our findings suggest that vaccine effectiveness diminishes in older adults, which supports the current recommendation for a booster dose in this population.

2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S10-S10
Author(s):  
Joshua Doyle ◽  
Lauren Beacham ◽  
Elif Alyanak ◽  
Manjusha Gaglani ◽  
Emily T Martin ◽  
...  

Abstract Background Seasonal influenza causes substantial morbidity and mortality, and older adults are disproportionately affected. Newer vaccines have been developed for use in people 65 years and older, including a trivalent inactivated vaccine with a 4-fold higher dose of antigen (IIV-HD). In recent years, the use of IIV-HD has increased sufficiently to evaluate its effectiveness compared with standard-dose inactivated influenza vaccines (IIV-SD). Methods Hospitalized patients with acute respiratory illness were enrolled in an observational vaccine effectiveness study at 8 hospitals in 4 states participating in the United States Hospitalized Adult Influenza Vaccine Effectiveness Network during the 2015–2016 and 2016–2017 influenza seasons. Predominant influenza A virus subtypes were H1N1 and H3N2, respectively, during these seasons. All enrolled patients were tested for influenza virus with polymerase chain reaction. Receipt and type of influenza vaccine was determined from electronic records and chart review. Odds of laboratory-confirmed influenza were compared among vaccinated and unvaccinated patients. Relative odds of laboratory-confirmed influenza were determined for patients who received IIV-HD or IIV-SD, and adjusted for potential confounding variables via logistic regression. Results Among 1,744 enrolled patients aged ≥ 65 years, 1,105 (63%) were vaccinated; among those vaccinated, 621 (56%) received IIV-HD and 484 (44%) received IIV-SD. Overall, 315 (18%) tested positive for influenza, including 97 (6%) who received IIV-HD, 86 (5%) who received IIV-SD, and 132 (8%) who were unvaccinated. Controlling for age, race, sex, enrollment site, date of illness, index of comorbidity, and influenza season, the adjusted odds of influenza among patients vaccinated with IIV-HD vs. IIV-SD were 0.72 (P = 0.06, 95% CI: 0.52 to 1.01). Conclusion Comparison of high-dose vs. standard-dose vaccine effectiveness during 2 recent influenza seasons (1 H1N1 and 1 H3N2-predominant) suggested relative benefit (nonsignificant) of high-dose influenza vaccine in protecting against influenza-associated hospitalization among persons aged 65 years and older; additional years of data are needed to confirm this finding. Disclosures H. K. Talbot, sanofi pasteur: Investigator, Research grant. Gilead: Investigator, Research grant. MedImmune: Investigator, Research grant. Vaxinnate: Safety Board, none. Seqirus: Safety Board, none.


Author(s):  
Joshua D Doyle ◽  
Lauren Beacham ◽  
Emily T Martin ◽  
H Keipp Talbot ◽  
Arnold Monto ◽  
...  

Abstract Background Seasonal influenza causes substantial morbidity and mortality in older adults. High-dose inactivated influenza vaccine (HD-IIV), with increased antigen content compared to standard-dose influenza vaccines (SD-IIV), is licensed for use in people aged ≥65 years. We sought to evaluate the effectiveness of HD-IIV and SD-IIV for prevention of influenza-associated hospitalizations. Methods Hospitalized patients with acute respiratory illness were enrolled in an observational vaccine effectiveness study at 8 hospitals in the United States Hospitalized Adult Influenza Vaccine Effectiveness Network during the 2015–2016 and 2016–2017 influenza seasons. Enrolled patients were tested for influenza, and receipt of influenza vaccine by type was recorded. Effectiveness of SD-IIV and HD-IIV was estimated using a test-negative design (comparing odds of influenza among vaccinated and unvaccinated patients). Relative effectiveness of SD-IIV and HD-IIV was estimated using logistic regression. Results Among 1487 enrolled patients aged ≥65 years, 1107 (74%) were vaccinated; 622 (56%) received HD-IIV, and 485 (44%) received SD-IIV. Overall, 277 (19%) tested positive for influenza, including 98 (16%) who received HD-IIV, 87 (18%) who received SD-IIV, and 92 (24%) who were unvaccinated. After adjusting for confounding variables, effectiveness of SD-IIV was 6% (95% confidence interval [CI] −42%, 38%) and that of HD-IIV was 32% (95% CI −3%, 54%), for a relative effectiveness of HD-IIV versus SD-IIV of 27% (95% CI −1%, 48%). Conclusions During 2 US influenza seasons, vaccine effectiveness was low to moderate for prevention of influenza hospitalization among adults aged ≥65 years. High-dose vaccine offered greater effectiveness. None of these findings were statistically significant.


2018 ◽  
pp. 37-44
Author(s):  
Roger Baxter ◽  
Joan Bartlett ◽  
Bruce Fireman ◽  
Edwin Lewis ◽  
Nicola P. Klein

BACKGROUND Vaccination against pertussis during pregnancy is recommended to protect newborns, yet there is limited information about the effectiveness of maternal tetanus toxoid, reduced diphtheria toxoid, acellular pertussis (Tdap) vaccine before the first infant dose of diphtheria, tetanus and acellular pertussis (DTaP) vaccine and during the first year of life in infants who have received DTaP. METHODS In a retrospective cohort study of infants born at Kaiser Permanente Northern California from 2010 to 2015, we estimated the effectiveness of maternal pertussis vaccination for protecting newborns against pertussis in the first 2 months of life and in the first year of life accounting for each infant DTaP dose. RESULTS Among 148 981 newborns, the vaccine effectiveness of maternal Tdap was 91.4% (95% confidence interval [CI], 19.5 to 99.1) during the first 2 months of life and 69.0% (95% CI, 43.6 to 82.9) during the entire first year of life. The vaccine effectiveness was 87.9% (95% CI, 41.4 to 97.5) before infants had any DTaP vaccine doses, 81.4% (95% CI, 42.5 to 94.0) between doses 1 and 2, 6.4% (95% CI, −165.1 to 66.9) between doses 2 and 3, and 65.9% (95% CI, 4.5 to 87.8) after infants had 3 DTaP doses. CONCLUSIONS Maternal Tdap vaccination was highly protective against infant pertussis, especially in the first 2 months of life. Even after infant DTaP dosing, there was evidence of additional protection from maternal Tdap vaccination for the first year of life. This study strongly supports the United States’ current recommendation to administer Tdap during each pregnancy.


2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 502-502
Author(s):  
Lauren Palmer ◽  
Jennifer Howard ◽  
Helena Voltmer ◽  
Abigail Ferrell ◽  
Natalie Mulmule ◽  
...  

Abstract Even prior to the COVID-19 Public Health and Medical Emergency, the experiences of chronic social isolation and loneliness (SIL) were growing among older adults. Countries began increasing national visibility for these issues and implementing programs and services focused on addressing them. In the United States (US), however, little is known about successful national interventions or their effectiveness in tackling SIL among older Americans. We conducted a rapid review of the peer-reviewed and grey literature from 2009-2019, focusing on existing federal programs, health systems, and health care models in the US that address SIL among older adults. Of the 110 articles identified, 36 met the inclusion criteria and were synthesized. Our review found few federal interventions that directly address SIL; several may be addressing SIL as an auxiliary outcome to addressing social determinants of health, such as group exercise, transportation support, or food insecurity. While these interventions may provide a promising opportunity, implementation and evaluation challenges were identified. Thus, federal and state agencies face significant obstacles to understanding the impact of existing interventions and their effectiveness in addressing SIL, hampering progress toward large scale implementation. As SIL receives increasing attention, we add another voice to existing literature that indicates significant heterogeneity among existing programs; we found that few evidence-based, scalable federal initiatives exist in the US that target SIL. Without resources from federal and state agencies, the ability of health entities, community-based organizations, and direct care providers to implement effective interventions is significantly diminished.


2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 954-955
Author(s):  
Stephanie de Sam Lazaro ◽  
Anchee Nitschke Durben ◽  
Juliette Kline

Abstract Tooth decay and gum disease are two of the most common chronic health conditions in the United States, are reversible and preventable, and impact approximately 68% of older adults nationwide (CDC, 2021; World Health Organization, 2020). While the Affordable Care Act added provisions to health prevention services, oral health prevention coverage was only included for children, leaving many adults and older adults without coverage (Nasseh & Vujicic, 2017). The research team used a rapid review process using 17 key search term combinations to identify literature in three medical databases (PubMed, CINAHL, and Consumer Health Complete) to identify system and policy level barriers and opportunities to address oral health equity issues for older adults in the United States. 40 articles met inclusion criteria for thematic analysis. Findings revealed three barrier categories: 1) poor oral health literacy of patients and health care providers, 2) reimbursement variability contributing to access and utilization barriers, 3) workforce and scope of practice variability. In addition, four opportunity categories were identified: 1) community-based oral health programming for older adults, 2) new reimbursement models, 3) medical-dental collaborations, and 4) policy and practice act updates. The COVID-19 public health crisis has impacted the implementation of some system and policy level opportunities. However, new health care initiatives specific to Medicare in discussion at the national level provide an opportunity to make some headway on the policy updates needed to address the oral health of older Americans. Findings and implications will be shared with the audience.


2010 ◽  
Vol 134 (10) ◽  
pp. 1490-1503
Author(s):  
Elizabeth A. Wagar ◽  
Michael J. Mitchell ◽  
Karen C. Carroll ◽  
Kathleen G. Beavis ◽  
Cathy Anne Petti ◽  
...  

Abstract Context.—The anthrax incident of 2001 in the United States prompted the College of American Pathologists (CAP), the Association of Public Health Laboratories, and the Centers for Disease Control and Prevention to develop exercises for Laboratory Response Network (LRN) sentinel laboratories. Objective.—To provide an overview of the results of the CAP bioterrorism Laboratory Preparedness Survey (LPS, 2007) and Laboratory Preparedness Exercise (LPX, 2008) and assist LRN sentinel laboratories and public health agencies in planning for bioterrorism events. Design.—Bioterrorism agents and nonbiothreat mimic organisms were provided in 2 mailings per year (2007 and 2008, 20 total challenges). Within each mailing, 2 to 3 agents were category A or category B bioterrorism agents (total of 10 categoric challenges). Some category A/B isolates were modified/vaccine strains. The total number of laboratories participating in these exercises ranged from 1316 to 1381. Isolate characteristics used to identify the organisms were compiled along with the participants' reporting actions. Educational commentary was provided with each exercise. Results.—Acceptable identification responses were as follows: Bacillus anthracis, 90% (2007) and 99.9% (2008); Yersinia pestis, 83.8% (2007) and 87.6% (2008); and Francisella tularensis subsp Holarctica, 86.6% (2007) and 91.6% (2008). The time interval between specimen receipt and notification of results to an LRN reference laboratory decreased from more than 10 days in 2007 to 3 or 4 days in 2008 for some challenges. Conclusions.—The bioterrorism challenge program (LPS, LPX) provides important comparative data from more than 1300 sentinel laboratories that can be used by individual laboratories to evaluate their identification and LRN reporting performance.


GeroPsych ◽  
2015 ◽  
Vol 28 (2) ◽  
pp. 67-76
Author(s):  
Grace C. Niu ◽  
Patricia A. Arean

The recent increase in the aging population, specifically in the United States, has raised concerns regarding treatment for mental illness among older adults. Late-life depression (LLD) is a complex condition that has become widespread among the aging population. Despite the availability of behavioral interventions and psychotherapies, few depressed older adults actually receive treatment. In this paper we review the research on refining treatments for LLD. We first identify evidence-based treatments (EBTs) for LLD and the problems associated with efficacy and dissemination, then review approaches to conceptualizing mental illness, specifically concepts related to brain plasticity and the Research Domain Criteria (RDoc). Finally, we introduce ENGAGE as a streamlined treatment for LLD and discuss implications for future research.


2000 ◽  
Vol 5 (1) ◽  
pp. 28-33 ◽  
Author(s):  
M. Afzalur Rahim ◽  
David Antonioni ◽  
Krum Krumov ◽  
Snejana Ilieva

This study investigated the relationships of bases of leader power (coercive, reward, legitimate, expert, and referent) and styles of handling interpersonal conflict (integrating, obliging, dominating, avoiding, and compromising) to subordinates' effectiveness. Data for this study were collected with questionnaires from the United States and Bulgaria and analyzed with hierarchical regression analysis for each country. Results indicated that in the United States referent power base of supervisors and integrating style of handling conflict of subordinates were positively associated with effectiveness. In Bulgaria, legitimate power base of supervisors was positively associated with effectiveness, but the subordinates' conflict styles were not associated with effectiveness.


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