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Nasreen S, Wang J, Marra F, Kwong JC, McGeer A, Sadarangani M, Wilson SE, Fadel SA. Indirect impact of childhood 13-valent pneumococcal conjugate vaccine (PCV13) in Canadian older adults: a Canadian Immunization Research Network (CIRN) retrospective observational study. Thorax 2024; 79:861-869. [PMID: 38359926 PMCID: PMC11347212 DOI: 10.1136/thorax-2023-220377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 01/19/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND 13-valent pneumococcal conjugate vaccine (PCV13) has been part of publicly funded childhood immunisation programmes in Ontario and British Columbia (BC) since 2010. We assessed the indirect impact of infant PCV13 programmes on invasive pneumococcal disease (IPD) and all-cause pneumonia hospitalisation in older adults (aged ≥65 years) using a retrospective observational study. METHODS We extracted monthly IPD and all-cause pneumonia cases from laboratory and health administrative databases between January 2005 and December 2018. Using a quasi-experimental difference-in-differences design, we calculated the ratio of risk ratios (RRRs) using incidence rates of IPD or all-cause pneumonia cases before (pre-PCV13 period) and after (PCV13 period) 2010 with rates of fractures as controls. RESULTS The rates of all IPD or PCV serotype-specific IPD for older adults in both Ontario and BC did not change in 8 years after childhood PCV13 programme implementation. All-cause pneumonia increased in Ontario (RRR 1.38, 95% CI 1.11 to 1.71) but remained unchanged in BC. CONCLUSIONS Indirect community protection of older adults from hospitalisation with pneumococcal disease stalled despite maturation of childhood PCV13 vaccination programmes in two Canadian provinces.
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Affiliation(s)
- Sharifa Nasreen
- University of Toronto Dalla Lana School of Public Health, Toronto, Ontario, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- SUNY Downstate Health Sciences University School of Public Health, Brooklyn, New York, USA
| | - Jun Wang
- ICES, Toronto, Ontario, Canada
- Public Health Ontario, Toronto, Ontario, Canada
| | - Fawziah Marra
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jeffrey C Kwong
- University of Toronto Dalla Lana School of Public Health, Toronto, Ontario, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Public Health Ontario, Toronto, Ontario, Canada
- Department of Family & Community Medicine, University of Toronto, Toronto, Ontario, Canada
- University Health Network, Toronto, Ontario, Canada
| | - Allison McGeer
- University of Toronto Dalla Lana School of Public Health, Toronto, Ontario, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, Ontario, Canada
- Sinai Health System, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Manish Sadarangani
- Department of Pediatrics, University of British Columbia Faculty of Medicine, Vancouver, British Columbia, Canada
- Vaccine Evaluation Center, BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Sarah E Wilson
- University of Toronto Dalla Lana School of Public Health, Toronto, Ontario, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Public Health Ontario, Toronto, Ontario, Canada
| | - Shaza A Fadel
- University of Toronto Dalla Lana School of Public Health, Toronto, Ontario, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, Ontario, Canada
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2
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Averin A, Law A, Shea K, Atwood M, Munjal I, Weycker D. Episodic Cost of Lower Respiratory Tract Illness due to Respiratory Syncytial Virus Among US Infants During the First Year of Life. J Infect Dis 2024; 230:480-484. [PMID: 38133638 DOI: 10.1093/infdis/jiad598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023] Open
Abstract
A study of 2 health care claims databases (commercial, Medicaid) was undertaken to estimate the episodic cost of lower respiratory tract illness due to respiratory syncytial virus among infants aged <12 months overall, by age, and by birth gestational age. Among commercial-insured infants, mean costs were $28 812 for hospitalized episodes, $2575 for emergency department episodes, and $336 for outpatient clinic episodes. Costs were highest among infants aged <1 month and infants with a gestational age ≤32 weeks and were comparable among Medicaid-insured infants, albeit somewhat lower. The cost of lower respiratory tract illness due to respiratory syncytial virus during the acute phase of illness is high, especially among the youngest infants and those born premature.
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Affiliation(s)
| | - Amy Law
- Pfizer Inc, Collegeville, Pennsylvania
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Hou Y, Chen M, Bian Y, Hu Y, Chuan J, Zhong L, Zhu Y, Tong R. Insights into vaccines for elderly individuals: from the impacts of immunosenescence to delivery strategies. NPJ Vaccines 2024; 9:77. [PMID: 38600250 PMCID: PMC11006855 DOI: 10.1038/s41541-024-00874-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/28/2024] [Indexed: 04/12/2024] Open
Abstract
Immunosenescence increases the risk and severity of diseases in elderly individuals and leads to impaired vaccine-induced immunity. With aging of the global population and the emerging risk of epidemics, developing adjuvants and vaccines for elderly individuals to improve their immune protection is pivotal for healthy aging worldwide. Deepening our understanding of the role of immunosenescence in vaccine efficacy could accelerate research focused on optimizing vaccine delivery for elderly individuals. In this review, we analyzed the characteristics of immunosenescence at the cellular and molecular levels. Strategies to improve vaccination potency in elderly individuals are summarized, including increasing the antigen dose, preparing multivalent antigen vaccines, adding appropriate adjuvants, inhibiting chronic inflammation, and inhibiting immunosenescence. We hope that this review can provide a review of new findings with regards to the impacts of immunosenescence on vaccine-mediated protection and inspire the development of individualized vaccines for elderly individuals.
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Affiliation(s)
- Yingying Hou
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Min Chen
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Yuan Bian
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Yuan Hu
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Junlan Chuan
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Lei Zhong
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
| | - Yuxuan Zhu
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
| | - Rongsheng Tong
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
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Hyams C, Lahuerta M, Theilacker C, King J, Adegbite D, McGuinness S, Grimes C, Campling J, Southern J, Pride MW, Begier E, Maskell N, Oliver J, Jodar L, Gessner BD, Finn A. Surveillance of pneumococcal serotypes in adults hospitalised with acute lower respiratory tract infection in Bristol, UK. Vaccine 2024; 42:1599-1607. [PMID: 38336560 DOI: 10.1016/j.vaccine.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/18/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
INTRODUCTION Pneumococcus remains a major cause of adult lower respiratory tract infections (LRTI). Few data exist on the relative contribution of serotypes included in pneumococcal vaccines to community-acquired pneumonia (CAP) and non-pneumonic (NP) LRTI. We measured the burden of all and vaccine-serotype pneumococcal respiratory infection following SARS-CoV-2 emergence to inform evidence-based vaccination policy. METHODS A prospective cohort study at two Bristol hospitals (UK) including all adults age ≥ 18-years hospitalised with acute lower respiratory tract disease (aLRTD) from Nov2021-Nov2022. LRTI patients were classified as: a) radiographically-confirmed CAP (CAP+/RAD+), b) clinically-diagnosed CAP without radiological confirmation (CAP+/RAD-), or c) NP-LRTI. Pneumococcus was identified by blood culture, BinaxNOW™and serotype-specific urine antigen detection assays (UAD). RESULTS Of 12,083 aLRTD admissions, 10,026 had LRTI and 2,445 provided urine: 1,097 CAP + RAD+; 207 CAP + RAD-; and 1,141 NP-LRTI. Median age was 71.1y (IQR57.9-80.2) and Charlson comorbidity index = 4 (IQR2-5); 2.7 % of patients required intensive care, and 4.4 % died within 30-days of hospitalisation. Pneumococcus was detected in 280/2445 (11.5 %) participants. Among adults aged ≥ 65y and 18-64y, 12.9 % (198/1534) and 9.0 % (82/911), respectively, tested pneumococcus positive. We identified pneumococcus in 165/1097 (15.0 %) CAP + RAD+, 23/207 (11.1 %) CAP + RAD-, and 92/1141 (8.1 %) NP-LRTI cases. Of the 280 pneumococcal cases, 102 (36.4 %) were due to serotypes included in PCV13 + 6C, 115 (41.7 %) in PCV15 + 6C, 210 (75.0 %) in PCV20 + 6C/15C and 228 (81.4 %) in PPV23 + 15C. The most frequently identified serotypes were 8 (n = 78; 27.9 % of all pneumococcus), 7F (n = 25; 8.9 %), and 3 (n = 24; 8.6 %). DISCUSSION Among adults hospitalised with respiratory infection, pneumococcus is an important pathogen across all subgroups, including CAP+/RAD- and NP-LRTI. Despite 20-years of PPV23 use in adults ≥ 65-years and herd protection due to 17-years of PCV use in infants, vaccine-serotype pneumococcal disease still causes a significant proportion of LRTI adult hospitalizations. Direct adult vaccination with high-valency PCVs may reduce pneumococcal disease burden.
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Affiliation(s)
- Catherine Hyams
- Population Health Sciences, University of Bristol, Bristol, UK.
| | | | | | - Jade King
- Clinical Research and Imaging Centre, UHBW NHS Trust, Bristol, UK
| | - David Adegbite
- Bristol Vaccine Centre, Population Health Sciences, University of Bristol, Bristol, UK
| | - Serena McGuinness
- Bristol Vaccine Centre, Population Health Sciences, University of Bristol, Bristol, UK
| | | | | | | | | | | | - Nick Maskell
- Academic Respiratory Unit, University of Bristol, Bristol, UK
| | - Jennifer Oliver
- Bristol Vaccine Centre, Population Health Sciences, University of Bristol, Bristol, UK
| | | | | | - Adam Finn
- Bristol Vaccine Centre, Cellular and Molecular Medicine and Population Health Sciences, University of Bristol, Bristol, UK
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5
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Averin A, Atwood M, Sato R, Yacisin K, Begier E, Shea K, Curcio D, Houde L, Weycker D. Attributable Cost of Adult Respiratory Syncytial Virus Illness Beyond the Acute Phase. Open Forum Infect Dis 2024; 11:ofae097. [PMID: 38486815 PMCID: PMC10939437 DOI: 10.1093/ofid/ofae097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/21/2024] [Indexed: 03/17/2024] Open
Abstract
Background Estimates of the cost of medically attended lower respiratory tract illness (LRTI) due to respiratory syncytial virus (RSV) in adults, especially beyond the acute phase, is limited. This study was undertaken to estimate the attributable costs of RSV-LRTI among US adults during, and up to 1 year after, the acute phase of illness. Methods A retrospective observational matched-cohort design and a US healthcare claims repository (2016-2019) were employed. The study population comprised adults aged ≥18 years with RSV-LRTI requiring hospitalization (RSV-H), an emergency department visit (RSV-ED), or physician office/hospital outpatient visit (RSV-PO/HO), as well as matched comparison patients. All-cause healthcare expenditures were tallied during the acute phase of illness (RSV-H: from admission through 30 days postdischarge; ambulatory RSV: during the episode) and long-term phase (end of acute phase to end of following 1-year period). Results The study population included 4526 matched pairs of RSV-LRTI and comparison patients (RSV-H: n = 970; RSV-ED: n = 590; RSV-PO/HO: n = 2966). Mean acute-phase expenditures were $42 179 for RSV-H (vs $5154 for comparison patients), $4409 for RSV-ED (vs $377), and $922 for RSV-PO/HO (vs $201). By the end of the 1-year follow-up period, mean expenditures-including acute and long-term phases-were $101 532 for RSV-H (vs $36 302), $48 701 for RSV-ED (vs $27 131), and $28 851 for RSV-PO/HO (vs $20 523); overall RSV-LRTI attributable expenditures thus totaled $65 230, $21 570, and $8327, respectively. Conclusions The cost of RSV-LRTI requiring hospitalization or ambulatory care among US adults is substantial, and the economic impact of RSV-LTRI may extend well beyond the acute phase of illness.
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Affiliation(s)
| | - Mark Atwood
- Policy Analysis Inc, Boston, Massachusetts, USA
| | - Reiko Sato
- Pfizer Inc, Collegeville, Pennsylvania, USA
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6
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Bollaerts K, Wyndham-Thomas C, Miller E, Izurieta HS, Black S, Andrews N, Rubbrecht M, Van Heuverswyn F, Neels P. The role of real-world evidence for regulatory and public health decision-making for Accelerated Vaccine Deployment- a meeting report. Biologicals 2024; 85:101750. [PMID: 38360428 DOI: 10.1016/j.biologicals.2024.101750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/04/2024] [Indexed: 02/17/2024] Open
Abstract
The COVID-19 pandemic underscored the need for rapid evidence generation to inform public health decisions beyond the limitations of conventional clinical trials. This report summarises presentations and discussions from a conference on the role of Real-World Evidence (RWE) in expediting vaccine deployment. Attended by regulatory bodies, public health entities, and industry experts, the gathering was a collaborative exchange of experiences and recommendations for leveraging RWE for vaccine deployment. RWE proved instrumental in refining decision-making processes to optimise dosing regimens, enhance guidance on target populations, and steer vaccination strategies against emerging variants. Participants felt that RWE was successfully integrated into lifecycle management, encompassing boosters and safety considerations. However, challenges emerged, prompting a call for improvements in data quality, standardisation, and availability, acknowledging the variability and potential inaccuracies in data across diverse healthcare systems. Regulatory transparency should also be prioritised to foster public trust, and improved collaborations with governments are needed to streamline data collection and navigate data privacy regulations. Moreover, building and sustaining resources, expertise, and infrastructure in LMICs emerged as imperative for RWE-generating capabilities. Continued stakeholder collaboration and securing adequate funding emerged as vital pillars for advancing the use of RWE in shaping responsive and effective public health strategies.
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Affiliation(s)
| | | | - Elizabeth Miller
- London School of Hygiene and Tropical Medicine (LSHTM), United Kingdom
| | | | - Steve Black
- Global Vaccine Data Network (GVDN), New Zealand
| | - Nick Andrews
- UK Health Security Agency (UKHSA), United Kingdom
| | | | | | - Pieter Neels
- International Alliance of Biological Standardization (IABS-EU), Belgium.
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7
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Grant LR, Begier E, Theilacker C, Barry R, Hall-Murray C, Yan Q, Pope V, Pride MW, Jodar L, Gessner BD. Multicountry Review of Streptococcus pneumoniae Serotype Distribution Among Adults With Community-Acquired Pneumonia. J Infect Dis 2024; 229:282-293. [PMID: 37665210 PMCID: PMC10786249 DOI: 10.1093/infdis/jiad379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/24/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND Nonbacteremic community-acquired pneumonia (CAP) is a leading presentation of severe pneumococcal disease in adults. Serotype-specific urinary antigen detection (UAD) assay can detect serotypes causing pneumococcal CAP, including nonbacteremic cases, and guide recommendations for use of higher valency pneumococcal conjugate vaccines (PCVs). METHODS Adult CAP serotype distribution studies that used both Pfizer UADs (UAD1, detects PCV13 serotypes; UAD2, detects PCV20 non-PCV13 serotypes plus 2, 9N, 17F, and 20) were identified by review of an internal study database and included if results were published. The percentages of all-cause radiologically confirmed CAP (RAD + CAP) due to individual or grouped (PCV13, PCV15, and PCV20) serotypes as detected from culture or UAD were reported. RESULTS Six studies (n = 2, United States; n = 1 each, Germany, Sweden, Spain, and Greece) were included. The percentage of RAD + CAP among adults ≥18 years with PCV13 serotypes equaled 4.6% to 12.9%, with PCV15 serotypes 5.9% to 14.5%, and with PCV20 serotypes 7.8% to 23.8%. The percentage of RAD + CAP due to PCV15 and PCV20 serotypes was 1.1-1.3 and 1.3-1.8 times higher than PCV13 serotypes, respectively. CONCLUSIONS PCV13 serotypes remain a cause of RAD + CAP among adults even in settings with pediatric PCV use. Higher valency PCVs among adults could address an important proportion of RAD + CAP in this population.
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Affiliation(s)
- Lindsay R Grant
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Collegeville, Pennsylvania, USA
| | - Elizabeth Begier
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Dublin, Ireland
| | - Christian Theilacker
- Vaccines, Antivirals, and Evidence Generation, Pfizer Pharma GmbH, Berlin, Germany
| | - Rachid Barry
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Collegeville, Pennsylvania, USA
| | - Cassandra Hall-Murray
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Collegeville, Pennsylvania, USA
| | - Qi Yan
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Collegeville, Pennsylvania, USA
| | - Veneta Pope
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Collegeville, Pennsylvania, USA
| | - Michael W Pride
- Vaccine Research and Development, Pfizer Vaccines, Pearl River, New York, USA
| | - Luis Jodar
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Collegeville, Pennsylvania, USA
| | - Bradford D Gessner
- Vaccines, Antivirals, and Evidence Generation, Pfizer Biopharma Group, Collegeville, Pennsylvania, USA
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Weycker D, Averin A, Houde L, Ottino K, Shea K, Sato R, Gessner BD, Yacisin K, Curcio D, Begier E, Rozenbaum M. Rates of Lower Respiratory Tract Illness in US Adults by Age and Comorbidity Profile. Infect Dis Ther 2024; 13:207-220. [PMID: 38236516 PMCID: PMC10828164 DOI: 10.1007/s40121-023-00904-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/12/2023] [Indexed: 01/19/2024] Open
Abstract
INTRODUCTION While it is widely recognized that older adults, adults with chronic medical conditions (CMC), and adults with immunocompromising conditions (IC) are at increased risk of lower respiratory tract illness (LRTI), evidence of the magnitude of increased risk is limited. This study was thus undertaken to characterize rates of hospitalized and ambulatory LRTI among United States (US) adults by age and comorbidity profile. METHODS A retrospective cohort design and US healthcare claims database (2016-2019) were employed. Study population included adults aged ≥ 18 years and was stratified by age and comorbidity profile (CMC-, CMC+ , IC). LRTI was ascertained overall and by pathogen pathogen (e.g., respiratory syncytial virus [RSV]), and was classified by care setting (hospital, emergency department [ED], physician office/hospital outpatient [PO/HO]). RESULTS Relative rates (RR) of LRTI generally increased with older age across care settings (vs. 18-49 years), with the most marked increase for hospitalizations: for LRTI-hospitalized, RRs ranged from 3.3 for 50-64 years to 46.6 for ≥ 85 years; for LRTI-ED and LRTI-PO/HO, RRs ranged from 1.0 to 2.7 and from 1.3 to 1.5, respectively. Within age groups, LRTI rates were also consistently higher among CMC+ and IC adults (vs. CMC- adults). Age-specific RRs of LRTI patients hospitalized due to RSV were largely comparable to overall LRTI; age-specific RRs for other care settings, and RRs for CMC+ and IC adults (vs. CMC- adults), were generally higher for LRTI due to RSV. CONCLUSIONS Incidence of LRTI, including that due to RSV, especially for events requiring acute inpatient care, is markedly higher among older adults and adults of all ages with CMC or IC.
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Lewnard JA, Hong V, Bruxvoort KJ, Grant LR, Jódar L, Cané A, Arguedas A, Pomichowski ME, Gessner BD, Tartof SY. Burden of Lower Respiratory Tract Infections Preventable by Adult Immunization With 15- and 20-Valent Pneumococcal Conjugate Vaccines in the United States. Clin Infect Dis 2023; 77:1340-1352. [PMID: 37293708 DOI: 10.1093/cid/ciad355] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/16/2023] [Accepted: 06/07/2023] [Indexed: 06/10/2023] Open
Abstract
BACKGROUND Updated recommendations of the US Advisory Committee on Immunization Practices indicate that all adults aged ≥65 years and adults aged <65 years with comorbid conditions should receive 15- and 20-valent pneumococcal conjugate vaccines (PCV15/20). We aimed to assess the potential impact of these recommendations on the burden of lower respiratory tract infections (LRTIs) among adults. METHODS We estimated the incidence of LRTI cases and associated hospital admissions among enrollees of Kaiser Permanente Southern California from 2016 through 2019. We used a counterfactual inference framework to estimate excess LRTI-associated risk of death up to 180 days after diagnosis. We used prior estimates of PCV13 effectiveness against LRTI to model potential direct effects of PCV15/20 by age group and risk status. RESULTS Use of PCV15 and PCV20, respectively, could prevent 89.3 (95% confidence interval, 41.3-131.8) and 108.6 (50.4-159.1) medically attended LRTI cases; 21.9 (10.1-32.0) and 26.6 (12.4-38.7) hospitalized LRTI cases; and 7.1 (3.3-10.5) and 8.7 (4.0-12.7) excess LRTI-associated deaths, each per 10 000 person-years. Among at-risk adults aged <65 years, use of PCV15 and PCV20 could prevent 85.7 (39.6-131.5) and 102.7 (47.8-156.7) medically attended LRTI cases per 10 000 person-years; 5.1 (2.4-8.6) and 6.2 (2.8-10.2) LRTI hospitalizations per 10 000 person-years, and 0.9 (0.4-1.4) and 1.1 (0.5-1.7) excess LRTI-associated deaths per 10 000 person-years. CONCLUSIONS Our findings suggest recent recommendations, including PCV15/20 within adult pneumococcal vaccine series, may substantially reduce LRTI burden.
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Affiliation(s)
- Joseph A Lewnard
- Division of Epidemiology, School of Public Health, University of California -Berkeley, Berkeley, California, USA
- Division of Infectious Diseases & Vaccinology, School of Public Health, University of California -Berkeley, California, USA
- Center for Computational Biology, College of Engineering, University of California -Berkeley, California, USA
| | - Vennis Hong
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA
| | - Katia J Bruxvoort
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Luis Jódar
- Pfizer Vaccines, Collegeville, Pennsylvania, USA
| | | | | | - Magdalena E Pomichowski
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA
| | | | - Sara Y Tartof
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA
- Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California, USA
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10
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Bruxvoort KJ, Fischer H, Lewnard JA, Hong VX, Pomichowski M, Grant LR, Jódar L, Gessner BD, Tartof SY. Risk of subsequent lower respiratory tract infection (LRTI) after hospitalization for COVID-19 LRTI and non-COVID-19 LRTI: a retrospective cohort study. Pneumonia (Nathan) 2023; 15:15. [PMID: 37794443 PMCID: PMC10552217 DOI: 10.1186/s41479-023-00117-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/17/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Respiratory pathogens, including SARS-CoV-2, can cause pulmonary structural damage and physiologic impairment, which may increase the risk of subsequent lower respiratory tract infections (LRTI). Prior hospitalization for any reason is a risk factor for LRTI, but data on the risk of subsequent new-onset LRTI following hospitalization for COVID-19 LRTI or non-COVID-19 LRTI are needed to inform strategies for immunizations targeting respiratory pathogens. METHODS We conducted a retrospective cohort study at Kaiser Permanente Southern California (KPSC) among adults hospitalized from 3/1/2020 to 5/31/2022, excluding labor and delivery. We categorized individuals into 3 mutually exclusive baseline exposure groups: those hospitalized for COVID-19 LRTI, those hospitalized for non-COVID-19 LRTI, and those hospitalized for all other causes without LRTI or COVID-19 ("non-LRTI"). Following hospital discharge, patients were followed up for new-onset LRTI, beginning 30 antibiotic-free days after hospital discharge until 8/31/2022. We used multivariable cause-specific Cox regression with time-varying covariates to estimate hazard ratios (HR) of new-onset LRTI comparing those hospitalized for COVID-19 LRTI or non-COVID-19 LRTI to those hospitalized for non-LRTI, adjusting for demographic and clinical characteristics. RESULTS The study included 22,417 individuals hospitalized for COVID-19 LRTI, 12,795 individuals hospitalized for non-COVID-19 LRTI, and 176,788 individuals hospitalized for non-LRTI. Individuals hospitalized for non-COVID-19 LRTI were older and had more comorbidities than those hospitalized for COVID-19 LRTI or non-LRTI. Incidence rates per 1,000 person-years (95% CI) of new-onset LRTI were 52.5 (51.4-53.6) among individuals hospitalized for COVID-19 LRTI, 253.5 (243.7-263.6) among those hospitalized for non-COVID-19 LRTI, and 52.5 (51.4-53.6) among those hospitalized for non-LRTI. The adjusted hazard of new-onset LRTI during follow-up was 20% higher among individuals hospitalized for COVID-19 LRTI (HR 1.20 [95% CI: 1.12-1.28]) and 301% higher among individuals hospitalized for non-COVID-19 LRTI (HR 3.01 [95% CI: 2.87-3.15]) compared to those hospitalized for non-LRTI. CONCLUSION The risk of new-onset LRTI following hospital discharge was high, particularly among those hospitalized for non-COVID-19 LRTI, but also for COVID-19 LRTI. These data suggest that immunizations targeting respiratory pathogens, including COVID-19, should be considered for adults hospitalized for LRTI prior to hospital discharge.
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Affiliation(s)
- Katia J Bruxvoort
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA.
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, 1665 University Blvd, Birmingham, AL, 35233, USA.
| | - Heidi Fischer
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Joseph A Lewnard
- Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
- Division of Infectious Diseases & Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
- Center for Computational Biology, College of Engineering, University of California, Berkeley, Berkeley, CA, USA
| | - Vennis X Hong
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Magdalena Pomichowski
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | | | | | | | - Sara Y Tartof
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
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Kobayashi M, Pilishvili T, Farrar JL, Leidner AJ, Gierke R, Prasad N, Moro P, Campos-Outcalt D, Morgan RL, Long SS, Poehling KA, Cohen AL. Pneumococcal Vaccine for Adults Aged ≥19 Years: Recommendations of the Advisory Committee on Immunization Practices, United States, 2023. MMWR Recomm Rep 2023; 72:1-39. [PMID: 37669242 PMCID: PMC10495181 DOI: 10.15585/mmwr.rr7203a1] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023] Open
Abstract
This report compiles and summarizes all published recommendations from CDC’s Advisory Committee on Immunization Practices (ACIP) for use of pneumococcal vaccines in adults aged ≥19 years in the United States. This report also includes updated and new clinical guidance for implementation from CDC Before 2021, ACIP recommended 23-valent pneumococcal polysaccharide vaccine (PPSV23) alone (up to 2 doses), or both a single dose of 13-valent pneumococcal conjugate vaccine (PCV13) in combination with 1–3 doses of PPSV23 in series (PCV13 followed by PPSV23), for use in U.S. adults depending on age and underlying risk for pneumococcal disease. In 2021, two new pneumococcal conjugate vaccines (PCVs), a 15-valent and a 20-valent PCV (PCV15 and PCV20), were licensed for use in U.S. adults aged ≥18 years by the Food and Drug Administration ACIP recommendations specify the use of either PCV20 alone or PCV15 in series with PPSV23 for all adults aged ≥65 years and for adults aged 19–64 years with certain underlying medical conditions or other risk factors who have not received a PCV or whose vaccination history is unknown. In addition, ACIP recommends use of either a single dose of PCV20 or ≥1 dose of PPSV23 for adults who have started their pneumococcal vaccine series with PCV13 but have not received all recommended PPSV23 doses. Shared clinical decision-making is recommended regarding use of a supplemental PCV20 dose for adults aged ≥65 years who have completed their recommended vaccine series with both PCV13 and PPSV23 Updated and new clinical guidance for implementation from CDC includes the recommendation for use of PCV15 or PCV20 for adults who have received PPSV23 but have not received any PCV dose. The report also includes clinical guidance for adults who have received 7-valent PCV (PCV7) only and adults who are hematopoietic stem cell transplant recipients
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12
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Uraguchi K, Mitsuhashi T, Matsumoto N, Takao S, Makihara S, Ando M, Yorifuji T. Association between handwashing and gargling education for children and prevention of respiratory tract infections: a longitudinal Japanese children population-based study. Eur J Pediatr 2023; 182:4037-4047. [PMID: 37395829 DOI: 10.1007/s00431-023-05062-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/04/2023] [Accepted: 06/08/2023] [Indexed: 07/04/2023]
Abstract
PURPOSE A longitudinal study was conducted to examine the effects of handwashing and gargling education for children on the prevention of respiratory tract infections (RTIs) in children in Japan. METHODS The study included 38,554 children born in 2010 who were enrolled in a longitudinal study. Information on children's hygiene education regarding handwashing and gargling was collected in a survey at the age of 3.5 years. Based on parents' reports of doctors' diagnoses, airway infections and influenza events in the 12-month duration before the survey were evaluated for RTIs at the ages of 4.5 and 9 years. Poisson regression with robust variance was performed to examine the effects of hygiene education on RTIs prevention. The supplementary analysis was stratified by household income. RESULTS Children were categorized into different groups: 38% in the handwashing and gargling group, 29% in the handwashing group, 0.1% in the gargling group, and 9.7% in the no-education group. Exclusions were made for non-respondent children (23%) and those in the gargling group. Hygiene education was associated with decreased influenza at the age of 4.5 years in the handwashing (adjusted RR [aRR] = 0.8; 95% CI, 0.8-0.9) and handwashing and gargling groups (aRR = 0.8; 95% CI, 0.8-0.9) compared with no education. However, no preventive effects on airway infections at the age of 4.5 and 9, influenza at the age of 9, or hospitalization between the ages of 3.5 and 9 years were detected. Handwashing and gargling could significantly prevent influenza in low-income households (aRR = 0.7; 95% CI, 0.6-0.8). Conclusions: Gargling education was widespread and mostly combined with handwashing education in Japan. Hygiene education significantly affected prevention of influenza infections at the age of 4.5 years, especially in low-income households. WHAT IS KNOWN • Previous intervention studies showed handwashing and gargling are effective in preventing respiratory tract infections. WHAT IS NEW • We conducted a longitudinal study on handwashing and gargling education in Japanese children and found that handwashing and gargling were widely practiced together. • Handwashing and gargling education were related to a reduction in influenza, particularly in low-income households.
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Affiliation(s)
- Kensuke Uraguchi
- Department of Epidemiology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan.
- Department of Otolaryngology-Head and Neck Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan.
| | - Toshiharu Mitsuhashi
- Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan
| | - Naomi Matsumoto
- Department of Epidemiology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Soshi Takao
- Department of Epidemiology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Seiichiro Makihara
- Department of Otolaryngology-Head and Neck Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Mizuo Ando
- Department of Otolaryngology-Head and Neck Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Takashi Yorifuji
- Department of Epidemiology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
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13
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Grant LR, Meche A, McGrath L, Miles A, Alfred T, Yan Q, Chilson E. Risk of Pneumococcal Disease in US Adults by Age and Risk Profile. Open Forum Infect Dis 2023; 10:ofad192. [PMID: 37180598 PMCID: PMC10167987 DOI: 10.1093/ofid/ofad192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/07/2023] [Indexed: 05/16/2023] Open
Abstract
Background Older age and certain medical conditions are known to modify the risk of pneumococcal disease among adults. We quantified the risk of pneumococcal disease among adults with and without medical conditions in the United States between 2016 and 2019. Methods This retrospective cohort study used administrative health claims data from Optum's de-identified Clinformatics Data Mart Database. Incidence rates of pneumococcal disease-all-cause pneumonia, invasive pneumococcal disease (IPD), and pneumococcal pneumonia-were estimated by age group, risk profile (healthy, chronic, other, and immunocompromising medical condition), and individual medical condition. Rate ratios and 95% CIs were calculated comparing adults with risk conditions with age-stratified healthy counterparts. Results Among adults aged 18-49 years, 50-64 years, and ≥65 years, the rates of all-cause pneumonia per 100 000 patient-years were 953, 2679, and 6930, respectively. For the 3 age groups, the rate ratios of adults with any chronic medical condition vs healthy counterparts were 2.9 (95% CI, 2.8-2.9), 3.3 (95% CI, 3.2-3.3), and 3.2 (95% CI, 3.2-3.2), while the rate ratios of adults with any immunocompromising condition vs healthy counterparts were 4.2 (95% CI, 4.1-4.3), 5.8 (95% CI, 5.7-5.9), and 5.3 (95% CI, 5.3-5.4). Similar trends were observed for IPD and pneumococcal pneumonia. Persons with other medical conditions, such as obesity, obstructive sleep apnea, and neurologic disorders, were associated with increased risk of pneumococcal disease. Conclusions The risk of pneumococcal disease was high among older adults and adults with certain risk conditions, particularly immunocompromising conditions.
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Affiliation(s)
- Lindsay R Grant
- Medical Development & Scientific/Clinical Affairs, Pfizer Vaccines, Collegeville, Pennsylvania, USA
| | - Aster Meche
- Real World Evidence, Center of Excellence, Pfizer Inc, New York, New York, USA
| | - Leah McGrath
- Real World Evidence, Center of Excellence, Pfizer Inc, New York, New York, USA
| | - Amanda Miles
- Real World Evidence, Center of Excellence, Pfizer Inc, New York, New York, USA
| | - Tamuno Alfred
- Statistical Research and Data Science Center, Pfizer Inc, New York, New York, USA
| | - Qi Yan
- Medical Development & Scientific/Clinical Affairs, Pfizer Vaccines, Collegeville, Pennsylvania, USA
| | - Erica Chilson
- Medical Development & Scientific/Clinical Affairs, Pfizer Vaccines, Collegeville, Pennsylvania, USA
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14
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Lewnard JA, Bruxvoort KJ, Hong VX, Grant LR, Jódar L, Cané A, Gessner BD, Tartof SY. Effectiveness of Pneumococcal Conjugate Vaccination Against Virus-Associated Lower Respiratory Tract Infection Among Adults: A Case-Control Study. J Infect Dis 2023; 227:498-511. [PMID: 35323906 PMCID: PMC9383607 DOI: 10.1093/infdis/jiac098] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 03/21/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Interactions of Streptococcus pneumoniae with viruses feature in the pathogenesis of numerous respiratory illnesses. METHODS We undertook a case-control study among adults at Kaiser Permanente Southern California between 2015 and 2019. Case patients had diagnoses of lower respiratory tract infection (LRTI; including pneumonia or nonpneumonia LRTI diagnoses), with viral infections detected by multiplex polymerase chain reaction testing. Controls without LRTI diagnoses were matched to case patients by demographic and clinical attributes. We measured vaccine effectiveness (VE) for 13-valent (PCV13) against virus-associated LRTI by determining the adjusted odds ratio for PCV13 receipt, comparing case patients and controls. RESULTS Primary analyses included 13 856 case patients with virus-associated LRTI and 227 887 matched controls. Receipt of PCV13 was associated with a VE of 24.9% (95% confidence interval, 18.4%-30.9%) against virus-associated pneumonia and 21.5% (10.9%-30.9%) against other (nonpneumonia) virus-associated LRTIs. We estimated VEs of 26.8% (95% confidence interval, 19.9%-33.1%) and 18.6% (9.3%-27.0%) against all virus-associated LRTI episodes diagnosed in inpatient and outpatient settings, respectively. We identified statistically significant protection against LRTI episodes associated with influenza A and B viruses, endemic human coronaviruses, parainfluenza viruses, human metapneumovirus, and enteroviruses but not respiratory syncytial virus or adenoviruses. CONCLUSIONS Among adults, PCV13 conferred moderate protection against virus-associated LRTI. The impacts of pneumococcal conjugate vaccines may be mediated, in part, by effects on polymicrobial interactions between pneumococci and respiratory viruses.
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Affiliation(s)
- Joseph A Lewnard
- Division of Epidemiology, School of Public Health, University of California, Berkeley, California, USA
- Division of Infectious Diseases & Vaccinology, School of Public Health, University of California, Berkeley, California, USA
- Center for Computational Biology, College of Engineering, University of California, Berkeley, California, USA
| | - Katia J Bruxvoort
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA
| | - Vennis X Hong
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA
| | | | - Luis Jódar
- Pfizer Vaccines, Collegeville, Pennsylvania, USA
| | | | | | - Sara Y Tartof
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA
- Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California, USA
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15
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Vila-Córcoles A, Ochoa-Gondar O, de Diego-Cabanes C, Satué-Gracia EM, Torras-Vives V, Forcadell-Peris MJ, Ribas-Seguí D, Vila-Rovira A, Rodríguez-Casado C. Evaluating clinical effectiveness and impact of anti-pneumococcal vaccination in adults after universal childhood PCV13 implementation in Catalonia, 2017-2018. Vaccine X 2023; 13:100264. [PMID: 36798107 PMCID: PMC9926188 DOI: 10.1016/j.jvacx.2023.100264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 01/18/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023] Open
Abstract
Background At present, because of indirect effects derived from routine childhood immunisation, clinical benefits vaccinating adults with the 23-valent pneumococcal polysaccharide vaccine (PPsV23) and/or the 13-valent pneumococcal conjugate vaccine (PCV13) are uncertain. This study investigated clinical effectiveness for both PPsV23/PCV13 in preventing pneumonia among Catalonian adults during an earlier 2-year period post-PCV13 free (publicly funded) approval for infants. Methods We conducted a Population-based cohort study involving 2,059,645 adults ≥ 50 years in Catalonia, Spain, who were followed between 01/01/2017-31/12/2018. Primary outcomes were hospitalisation from pneumococcal pneumonia (PP) or all-cause pneumonia (ACP) and main explanatory variable was PCV13/PPsV23 vaccination status. Cox regression models were used to estimate vaccination effectiveness adjusted by age/sex and underlying-risk conditions. Results Cohort members were followed for 3,958,528 person-years (32,328 PCV13-vaccinated, 1,532,186 PPsV23-vaccinated), observing 3592 PP (131 in PCV13-vaccinated vs 2476 in PPsV23-vaccinated) and 24,136 ACP (876 in PCV13-vaccinated vs 17,550 in PPsV23-vaccinated). Incidence rates (per 100,000 person-years) were 90.7 for PP (394.2 in PCV13-vaccinated vs 161.6 in PPsV23-vaccinated) and 609.7 for ACP (2636.3 in PCV13-vaccinated vs 1145.4 in PPsV23-vaccinated). The PCV13 was associated with an increased risk of PP (hazard ratio [HR]: 1.24; 95% CI: 1.00-1.52; p = 0.046) and ACP (HR: 1.38; 95% CI: 1.28-1.49; p < 0.001) whereas the PPsV23 did not alter the risk of PP (HR: 1.07; 95% CI: 0.98-1.18; p = 0.153) and slightly increased the risk of ACP (HR: 1.14; 95% CI: 1.10-1.18; p < 0.001). In supplementary analyses focused on at-risk individuals (i.e., elderly persons, immunocompromissing and other chronic illnesses) protective effects of vaccination did not emerge either. Conclusions Data does not support clinical benefits from pneumococcal vaccination (nor PCV13 neither PPsV23) against pneumonia among Catalonian middle-aged and older adults in the current era of universal PCV13 childhood immunisation in our setting. New extended valency PCVs are greatly needed.
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Affiliation(s)
- Angel Vila-Córcoles
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain,Unitat de Suport a la Recerca of Tarragona, Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Tarragona, Spain
| | - Olga Ochoa-Gondar
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain
| | - Cinta de Diego-Cabanes
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain,Corresponding author at: Institut Catalá de la Salut, Rambla Nova 124, D, 1°A, 43001 Tarragona, Spain.
| | - Eva M. Satué-Gracia
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain,Unitat de Suport a la Recerca of Tarragona, Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Tarragona, Spain
| | - Verónica Torras-Vives
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain
| | - M. José Forcadell-Peris
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain
| | - Domingo Ribas-Seguí
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain
| | - Angel Vila-Rovira
- Primary Health Care Service “Camp de Tarragona”, Institut Català de la Salut, Tarragona, Spain
| | - Clara Rodríguez-Casado
- Information System for the Improvement of Research in Primary Care (SIDIAP), Primary Care Research Institute Jordi Gol, Universitat Autonoma de Barcelona, Barcelona, Spain
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16
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Kobayashi M, Spiller MW, Wu X, Wang R, Chillarige Y, Wernecke M, MaCurdy TE, Kelman JA, Deng L, Shang N, Whitney CG, Pilishvili T, Lessa FC. Association of Pneumococcal Conjugate Vaccine Use With Hospitalized Pneumonia in Medicare Beneficiaries 65 Years or Older With and Without Medical Conditions, 2014 to 2017. JAMA Intern Med 2023; 183:40-47. [PMID: 36469350 PMCID: PMC9857509 DOI: 10.1001/jamainternmed.2022.5472] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/29/2022] [Indexed: 12/12/2022]
Abstract
Importance The association of 13-valent pneumococcal conjugate vaccine (PCV13) use with pneumonia hospitalization in older adults, especially those with underlying medical conditions, is not well described. Objective To evaluate the association of PCV13 use with pneumonia, non-health care-associated (non-HA) pneumonia, and lobar pneumonia (LP) hospitalization among US Medicare beneficiaries 65 years or older. Design, Setting, and Participants This cohort study with time-varying exposure assignment analyzed claims data from US Medicare beneficiaries 65 years or older enrolled in Parts A/B with a residence in the 50 US states or the District of Columbia by September 1, 2014. New Medicare Parts A/B beneficiaries within 6 months after their 65th birthday were continuously included in the cohort after September 1, 2014, and followed through December 31, 2017. Participants were censored if they died, changed enrollment status, or developed a study outcome. Most of the analyses were conducted from 2018 to 2019, and additional analyses were performed from 2021 to 2022. Exposures Use of PCV13 vaccination 14 days or more before pneumonia hospitalization. Main Outcomes and Measures Discrete-time survival models were used to estimate the incidence rate ratio (IRR) and number of pneumonia hospitalizations averted through PCV13 use. The adjusted IRR for the association of PCV13 vaccination with pneumonia hospitalization was used to estimate vaccine effectiveness (VE). Results At the end of follow-up (December 2017), 24 121 625 beneficiaries (13 593 975 women [56.4%]; 418 005 [1.7%] Asian, 1 750 807 [4.8%] Black, 338 044 [1.4%] Hispanic, 111 508 [0.5%] Native American, and 20 700 948 [85.8%] White individuals) were in the cohort; 4 936 185 (20.5%) had received PCV13 only, and 10 646 220 (79.5%) had not received any pneumococcal vaccines. More than half of the beneficiaries in the cohort were younger than 75 years, White, and had either immunocompromising or chronic medical conditions. Coverage with PCV13 increased from 0.8% (September 2014) to 41.5% (December 2017). The VE for PCV13 was estimated at 6.7% (95% CI, 5.9%-7.5%) for pneumonia, 4.7% (95% CI, 3.9%-5.6%) for non-HA pneumonia, and 5.8% (95% CI, 2.6%-8.9%) for LP. From September 2014 through December 2017, an estimated 35 127 pneumonia (95% CI, 33 011-37 270), 24 643 non-HA pneumonia (95% CI, 22 761-26 552), and 1294 LP (95% CI, 797-1819) hospitalizations were averted through PCV13 use. Conclusions and Relevance The study results suggest that PCV13 use was associated with reduced pneumonia hospitalization among Medicare beneficiaries 65 years or older, many of whom had underlying medical conditions. Increased PCV13 coverage and use of recently approved higher-valent pneumococcal conjugate vaccines may avert additional pneumonia hospitalizations in adults.
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Affiliation(s)
- Miwako Kobayashi
- Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Michael W. Spiller
- Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia
| | | | | | | | | | - Thomas E. MaCurdy
- Acumen LLC, Burlingame, California
- Department of Economics and Hoover Institution, Stanford University, Stanford, California
| | | | - Li Deng
- Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Nong Shang
- Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Cynthia G. Whitney
- Rollins School of Public Health, Department of Global Health, Emory University, Atlanta, Georgia
| | - Tamara Pilishvili
- Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Fernanda C. Lessa
- Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia
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17
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Kühne F, Achtert K, Püschner F, Urbanski-Rini D, Schiller J, Mahar E, Friedrich J, Atwood M, Sprenger R, Vietri J, von Eiff C, Theilacker C. Cost-effectiveness of use of 20-valent pneumococcal conjugate vaccine among adults in Germany. Expert Rev Vaccines 2023; 22:921-932. [PMID: 37881844 DOI: 10.1080/14760584.2023.2262575] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 09/20/2023] [Indexed: 10/27/2023]
Abstract
OBJECTIVES Despite national recommendations for use of pneumococcal vaccines, rates of community-acquired pneumonia (CAP) and invasive pneumococcal disease (IPD) remain high in Germany. New pneumococcal conjugate vaccines (PCVs) with expanded coverage have the potential to reduce the pneumococcal disease burden among adults. METHODS Using a Markov model, we evaluated the lifetime outcomes/costs comparing 20-valent PCV (PCV20) with standard of care (SC) vaccinations for prevention of CAP and IPD among adults aged ≥60 years and at-risk adults aged 18-59 years in Germany. PCV20 also was compared with sequential vaccination with 15-valent PCV (PCV15) followed by PPSV23 in a scenario analysis. RESULTS Over the course of a lifetime (82 years), use of PCV20vs. SC would prevent 54,333 hospitalizations, 26368 outpatient CAP cases, 10946 disease-related deaths yield 74,694 additional life-years (LYs), while lowering total medical costs by 363.2 M €. PCV20 remained cost saving (i.e. dominant) versus SC even in numerous sensitivity analyses, including a sensitivity analysis assuming moderate effectiveness of the SC pneumococcal polysaccharide vaccine against noninvasive pneumococcal CAP. In several scenario analyses and a probabilistic sensitivity analysis, PCV20 was also cost-saving compared toPCV15 PPSV23 vaccination. CONCLUSIONS One dose of PCV20 among adults aged ≥60 years and adults aged 18-59 years with moderate- and high-risk conditions wouldsubstantially reduce pneumococcal disease, save lives, and be cost saving compared with SC.
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Affiliation(s)
| | - Katharina Achtert
- Private Institute for Applied Health Services Research (inav), Berlin, Germany
| | - Franziska Püschner
- Private Institute for Applied Health Services Research (inav), Berlin, Germany
| | | | - Juliane Schiller
- Private Institute for Applied Health Services Research (inav), Berlin, Germany
| | | | | | - Mark Atwood
- Policy Analysis Inc, Boston, Massachusetts, USA
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18
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Hsiao A, Klein NP. All Older Adults Benefit From Pneumococcal Vaccinations-The Case for Evaluating Vaccine Effectiveness Using All-Cause Pneumonia. JAMA Intern Med 2023; 183:48-49. [PMID: 36469330 DOI: 10.1001/jamainternmed.2022.5456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Amber Hsiao
- Kaiser Permanente Vaccine Study Center, Oakland, California
| | - Nicola P Klein
- Kaiser Permanente Vaccine Study Center, Oakland, California
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19
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Sabharwal C, Sundaraiyer V, Peng Y, Moyer L, Belanger TJ, Gessner BD, Jodar L, Jansen KU, Gruber WC, Scott DA, Watson W. Immunogenicity of a 20-valent pneumococcal conjugate vaccine in adults 18 to 64 years old with medical conditions and other factors that increase risk of pneumococcal disease. Hum Vaccin Immunother 2022; 18:2126253. [PMID: 36368038 DOI: 10.1080/21645515.2022.2126253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
CLINICAL TRIAL REGISTRATION NCT03760146, NCT03828617.
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Affiliation(s)
- Charu Sabharwal
- Vaccine Research and Development, Pfizer Inc, Pearl River, NY, USA
| | | | - Yahong Peng
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Lisa Moyer
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Todd J Belanger
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Bradford D Gessner
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer Inc, Collegeville, PA, USA
| | - Luis Jodar
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer Inc, Collegeville, PA, USA
| | - Kathrin U Jansen
- Vaccine Research and Development, Pfizer Inc, Pearl River, NY, USA
| | - William C Gruber
- Vaccine Research and Development, Pfizer Inc, Pearl River, NY, USA
| | - Daniel A Scott
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Wendy Watson
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
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20
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Kyu HH, Vongpradith A, Sirota SB, Novotney A, Troeger CE, Doxey MC, Bender RG, Ledesma JR, Biehl MH, Albertson SB, Frostad JJ, Burkart K, Bennitt FB, Zhao JT, Gardner WM, Hagins H, Bryazka D, Dominguez RMV, Abate SM, Abdelmasseh M, Abdoli A, Abdoli G, Abedi A, Abedi V, Abegaz TM, Abidi H, Aboagye RG, Abolhassani H, Abtew YD, Abubaker Ali H, Abu-Gharbieh E, Abu-Zaid A, Adamu K, Addo IY, Adegboye OA, Adnan M, Adnani QES, Afzal MS, Afzal S, Ahinkorah BO, Ahmad A, Ahmad AR, Ahmad S, Ahmadi A, Ahmadi S, Ahmed H, Ahmed JQ, Ahmed Rashid T, Akbarzadeh-Khiavi M, Al Hamad H, Albano L, Aldeyab MA, Alemu BM, Alene KA, Algammal AM, Alhalaiqa FAN, Alhassan RK, Ali BA, Ali L, Ali MM, Ali SS, Alimohamadi Y, Alipour V, Al-Jumaily A, Aljunid SM, Almustanyir S, Al-Raddadi RM, Al-Rifai RHH, AlRyalat SAS, Alvis-Guzman N, Alvis-Zakzuk NJ, Ameyaw EK, Aminian Dehkordi JJ, Amuasi JH, Amugsi DA, Anbesu EW, Ansar A, Anyasodor AE, Arabloo J, Areda D, Argaw AM, Argaw ZG, Arulappan J, Aruleba RT, Asemahagn MA, Athari SS, Atlaw D, Attia EF, Attia S, Aujayeb A, Awoke T, Ayana TM, Ayanore MA, Azadnajafabad S, Azangou-Khyavy M, Azari S, Azari Jafari A, Badar M, Badiye AD, Baghcheghi N, Bagherieh S, Baig AA, Banach M, Banerjee I, Bardhan M, Barone-Adesi F, Barqawi HJ, Barrow A, Bashiri A, Bassat Q, Batiha AMM, Belachew AB, Belete MA, Belgaumi UI, Bhagavathula AS, Bhardwaj N, Bhardwaj P, Bhatt P, Bhojaraja VS, Bhutta ZA, Bhuyan SS, Bijani A, Bitaraf S, Bodicha BBA, Briko NI, Buonsenso D, Butt MH, Cai J, Camargos P, Cámera LA, Chakraborty PA, Chanie MG, Charan J, Chattu VK, Ching PR, Choi S, Chong YY, Choudhari SG, Chowdhury EK, Christopher DJ, Chu DT, Cobb NL, Cohen AJ, Cruz-Martins N, Dadras O, Dagnaw FT, Dai X, Dandona L, Dandona R, Dao ATM, Debela SA, Demisse B, Demisse FW, Demissie S, Dereje D, Desai HD, Desta AA, Desye B, Dhingra S, Diao N, Diaz D, Digesa LE, Doan LP, Dodangeh M, Dongarwar D, Dorostkar F, dos Santos WM, Dsouza HL, Dubljanin E, Durojaiye OC, Edinur HA, Ehsani-Chimeh E, Eini E, Ekholuenetale M, Ekundayo TC, El Desouky ED, El Sayed I, El Sayed Zaki M, Elhadi M, Elkhapery AMR, Emami A, Engelbert Bain L, Erkhembayar R, Etaee F, Ezati Asar M, Fagbamigbe AF, Falahi S, Fallahzadeh A, Faraj A, Faraon EJA, Fatehizadeh A, Ferrara P, Ferrari AA, Fetensa G, Fischer F, Flavel J, Foroutan M, Gaal PA, Gaidhane AM, Gaihre S, Galehdar N, Garcia-Basteiro AL, Garg T, Gebrehiwot MD, Gebremichael MA, Gela YY, Gemeda BNB, Gessner BD, Getachew M, Getie A, Ghamari SH, Ghasemi Nour M, Ghashghaee A, Gholamrezanezhad A, Gholizadeh A, Ghosh R, Ghozy S, Goleij P, Golitaleb M, Gorini G, Goulart AC, Goyomsa GG, Guadie HA, Gudisa Z, Guled RA, Gupta S, Gupta VB, Gupta VK, Guta A, Habibzadeh P, Haj-Mirzaian A, Halwani R, Hamidi S, Hannan MA, Harorani M, Hasaballah AI, Hasani H, Hassan AM, Hassani S, Hassanian-Moghaddam H, Hassankhani H, Hayat K, Heibati B, Heidari M, Heyi DZ, Hezam K, Holla R, Hong SH, Horita N, Hosseini MS, Hosseinzadeh M, Hostiuc M, Househ M, Hoveidamanesh S, Huang J, Hussein NR, Iavicoli I, Ibitoye SE, Ikuta KS, Ilesanmi OS, Ilic IM, Ilic MD, Immurana M, Ismail NE, Iwagami M, Jaafari J, Jamshidi E, Jang SI, Javadi Mamaghani A, Javaheri T, Javanmardi F, Javidnia J, Jayapal SK, Jayarajah U, Jayaram S, Jema AT, Jeong W, Jonas JB, Joseph N, Joukar F, Jozwiak JJ, K V, Kabir Z, Kacimi SEO, Kadashetti V, Kalankesh LR, Kalhor R, Kamath A, Kamble BD, Kandel H, Kanko TK, Karaye IM, Karch A, Karkhah S, Kassa BG, Katoto PDMC, Kaur H, Kaur RJ, Keikavoosi-Arani L, Keykhaei M, Khader YS, Khajuria H, Khan EA, Khan G, Khan IA, Khan M, Khan MN, Khan MAB, Khan YH, Khatatbeh MM, Khosravifar M, Khubchandani J, Kim MS, Kimokoti RW, Kisa A, Kisa S, Kissoon N, Knibbs LD, Kochhar S, Kompani F, Koohestani HR, Korshunov VA, Kosen S, Koul PA, Koyanagi A, Krishan K, Kuate Defo B, Kumar GA, Kurmi OP, Kuttikkattu A, Lal DK, Lám J, Landires I, Ledda C, Lee SW, Levi M, Lewycka S, Liu G, Liu W, Lodha R, Lorenzovici L, Lotfi M, Loureiro JA, Madadizadeh F, Mahmoodpoor A, Mahmoudi R, Mahmoudimanesh M, Majidpoor J, Makki A, Malakan Rad E, Malik AA, Mallhi TH, Manla Y, Matei CN, Mathioudakis AG, Maude RJ, Mehrabi Nasab E, Melese A, Memish ZA, Mendoza-Cano O, Mentis AFA, Meretoja TJ, Merid MW, Mestrovic T, Micheletti Gomide Nogueira de Sá AC, Mijena GFW, Minh LHN, Mir SA, Mirfakhraie R, Mirmoeeni S, Mirza AZ, Mirza M, Mirza-Aghazadeh-Attari M, Misganaw AS, Misganaw AT, Mohammadi E, Mohammadi M, Mohammed A, Mohammed S, Mohan S, Mohseni M, Moka N, Mokdad AH, Momtazmanesh S, Monasta L, Moniruzzaman M, Montazeri F, Moore CE, Moradi A, Morawska L, Mosser JF, Mostafavi E, Motaghinejad M, Mousavi Isfahani H, Mousavi-Aghdas SA, Mubarik S, Murillo-Zamora E, Mustafa G, Nair S, Nair TS, Najafi H, Naqvi AA, Narasimha Swamy S, Natto ZS, Nayak BP, Nejadghaderi SA, Nguyen HVN, Niazi RK, Nogueira de Sá AT, Nouraei H, Nowroozi A, Nuñez-Samudio V, Nzoputam CI, Nzoputam OJ, Oancea B, Ochir C, Odukoya OO, Okati-Aliabad H, Okekunle AP, Okonji OC, Olagunju AT, Olufadewa II, Omar Bali A, Omer E, Oren E, Ota E, Otstavnov N, Oulhaj A, P A M, Padubidri JR, Pakshir K, Pakzad R, Palicz T, Pandey A, Pant S, Pardhan S, Park EC, Park EK, Pashazadeh Kan F, Paudel R, Pawar S, Peng M, Pereira G, Perna S, Perumalsamy N, Petcu IR, Pigott DM, Piracha ZZ, Podder V, Polibin RV, Postma MJ, Pourasghari H, Pourtaheri N, Qadir MMF, Raad M, Rabiee M, Rabiee N, Raeghi S, Rafiei A, Rahim F, Rahimi M, Rahimi-Movaghar V, Rahman A, Rahman MO, Rahman M, Rahman MA, Rahmani AM, Rahmanian V, Ram P, Ramezanzadeh K, Rana J, Ranasinghe P, Rani U, Rao SJ, Rashedi S, Rashidi MM, Rasul A, Ratan ZA, Rawaf DL, Rawaf S, Rawassizadeh R, Razeghinia MS, Redwan EMM, Reitsma MB, Renzaho AMN, Rezaeian M, Riad A, Rikhtegar R, Rodriguez JAB, Rogowski ELB, Ronfani L, Rudd KE, Saddik B, Sadeghi E, Saeed U, Safary A, Safi SZ, Sahebazzamani M, Sahebkar A, Sakhamuri S, Salehi S, Salman M, Samadi Kafil H, Samy AM, Santric-Milicevic MM, Sao Jose BP, Sarkhosh M, Sathian B, Sawhney M, Saya GK, Seidu AA, Seylani A, Shaheen AA, Shaikh MA, Shaker E, Shamshad H, Sharew MM, Sharhani A, Sharifi A, Sharma P, Sheidaei A, Shenoy SM, Shetty JK, Shiferaw DS, Shigematsu M, Shin JI, Shirzad-Aski H, Shivakumar KM, Shivalli S, Shobeiri P, Simegn W, Simpson CR, Singh H, Singh JA, Singh P, Siwal SS, Skryabin VY, Skryabina AA, Soltani-Zangbar MS, Song S, Song Y, Sood P, Sreeramareddy CT, Steiropoulos P, Suleman M, Tabatabaeizadeh SA, Tahamtan A, Taheri M, Taheri Soodejani M, Taki E, Talaat IM, Tampa M, Tandukar S, Tat NY, Tat VY, Tefera YM, Temesgen G, Temsah MH, Tesfaye A, Tesfaye DG, Tessema B, Thapar R, Ticoalu JHV, Tiyuri A, Tleyjeh II, Togtmol M, Tovani-Palone MR, Tufa DG, Ullah I, Upadhyay E, Valadan Tahbaz S, Valdez PR, Valizadeh R, Vardavas C, Vasankari TJ, Vo B, Vu LG, Wagaye B, Waheed Y, Wang Y, Waris A, West TE, Wickramasinghe ND, Xu X, Yaghoubi S, Yahya GAT, Yahyazadeh Jabbari SH, Yon DK, Yonemoto N, Zaman BA, Zandifar A, Zangiabadian M, Zar HJ, Zare I, Zareshahrabadi Z, Zarrintan A, Zastrozhin MS, Zeng W, Zhang M, Zhang ZJ, Zhong C, Zoladl M, Zumla A, Lim SS, Vos T, Naghavi M, Brauer M, Hay SI, Murray CJL. Age-sex differences in the global burden of lower respiratory infections and risk factors, 1990-2019: results from the Global Burden of Disease Study 2019. THE LANCET. INFECTIOUS DISEASES 2022; 22:1626-1647. [PMID: 35964613 PMCID: PMC9605880 DOI: 10.1016/s1473-3099(22)00510-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/18/2022] [Accepted: 07/18/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND The global burden of lower respiratory infections (LRIs) and corresponding risk factors in children older than 5 years and adults has not been studied as comprehensively as it has been in children younger than 5 years. We assessed the burden and trends of LRIs and risk factors across all age groups by sex, for 204 countries and territories. METHODS In this analysis of data for the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019, we used clinician-diagnosed pneumonia or bronchiolitis as our case definition for LRIs. We included International Classification of Diseases 9th edition codes 079.6, 466-469, 470.0, 480-482.8, 483.0-483.9, 484.1-484.2, 484.6-484.7, and 487-489 and International Classification of Diseases 10th edition codes A48.1, A70, B97.4-B97.6, J09-J15.8, J16-J16.9, J20-J21.9, J91.0, P23.0-P23.4, and U04-U04.9. We used the Cause of Death Ensemble modelling strategy to analyse 23 109 site-years of vital registration data, 825 site-years of sample vital registration data, 1766 site-years of verbal autopsy data, and 681 site-years of mortality surveillance data. We used DisMod-MR 2.1, a Bayesian meta-regression tool, to analyse age-sex-specific incidence and prevalence data identified via systematic reviews of the literature, population-based survey data, and claims and inpatient data. Additionally, we estimated age-sex-specific LRI mortality that is attributable to the independent effects of 14 risk factors. FINDINGS Globally, in 2019, we estimated that there were 257 million (95% uncertainty interval [UI] 240-275) LRI incident episodes in males and 232 million (217-248) in females. In the same year, LRIs accounted for 1·30 million (95% UI 1·18-1·42) male deaths and 1·20 million (1·07-1·33) female deaths. Age-standardised incidence and mortality rates were 1·17 times (95% UI 1·16-1·18) and 1·31 times (95% UI 1·23-1·41) greater in males than in females in 2019. Between 1990 and 2019, LRI incidence and mortality rates declined at different rates across age groups and an increase in LRI episodes and deaths was estimated among all adult age groups, with males aged 70 years and older having the highest increase in LRI episodes (126·0% [95% UI 121·4-131·1]) and deaths (100·0% [83·4-115·9]). During the same period, LRI episodes and deaths in children younger than 15 years were estimated to have decreased, and the greatest decline was observed for LRI deaths in males younger than 5 years (-70·7% [-77·2 to -61·8]). The leading risk factors for LRI mortality varied across age groups and sex. More than half of global LRI deaths in children younger than 5 years were attributable to child wasting (population attributable fraction [PAF] 53·0% [95% UI 37·7-61·8] in males and 56·4% [40·7-65·1] in females), and more than a quarter of LRI deaths among those aged 5-14 years were attributable to household air pollution (PAF 26·0% [95% UI 16·6-35·5] for males and PAF 25·8% [16·3-35·4] for females). PAFs of male LRI deaths attributed to smoking were 20·4% (95% UI 15·4-25·2) in those aged 15-49 years, 30·5% (24·1-36·9) in those aged 50-69 years, and 21·9% (16·8-27·3) in those aged 70 years and older. PAFs of female LRI deaths attributed to household air pollution were 21·1% (95% UI 14·5-27·9) in those aged 15-49 years and 18·2% (12·5-24·5) in those aged 50-69 years. For females aged 70 years and older, the leading risk factor, ambient particulate matter, was responsible for 11·7% (95% UI 8·2-15·8) of LRI deaths. INTERPRETATION The patterns and progress in reducing the burden of LRIs and key risk factors for mortality varied across age groups and sexes. The progress seen in children younger than 5 years was clearly a result of targeted interventions, such as vaccination and reduction of exposure to risk factors. Similar interventions for other age groups could contribute to the achievement of multiple Sustainable Development Goals targets, including promoting wellbeing at all ages and reducing health inequalities. Interventions, including addressing risk factors such as child wasting, smoking, ambient particulate matter pollution, and household air pollution, would prevent deaths and reduce health disparities. FUNDING Bill & Melinda Gates Foundation.
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Davies LRL, Cizmeci D, Guo W, Luedemann C, Alexander-Parrish R, Grant L, Isturiz R, Theilacker C, Jodar L, Gessner BD, Alter G. Polysaccharide and conjugate vaccines to Streptococcus pneumoniae generate distinct humoral responses. Sci Transl Med 2022; 14:eabm4065. [PMID: 35921476 PMCID: PMC9885968 DOI: 10.1126/scitranslmed.abm4065] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Streptococcus pneumoniae is a major cause of community-acquired pneumonia, bacteremia, and meningitis in older adults worldwide. Two pneumococcal vaccines containing S. pneumoniae capsular polysaccharides are in current use: the polysaccharide vaccine PPSV23 and the glycoconjugate vaccine PCV13. In clinical trials, both vaccines elicit similar opsonophagocytic killing activity. In contrast to polysaccharide vaccines, conjugate vaccines have shown consistent efficacy against nasopharyngeal carriage and noninvasive pneumonia overall and for some prevalent individual serotypes. Given these different clinical profiles, it is crucial to understand the differential immunological responses induced by these two vaccines. Here, we used a high-throughput systems serology approach to profile the biophysical and functional features of serum antibodies induced by PCV13 and PPSV23 at 1 month and 1 year. In comparison with PPSV23, PCV13 induced higher titers across antibody isotypes; more durable antibody responses across immunoglobulin G (IgG), IgA, and IgM isotypes; and increased antigenic breadth. Although titers measured in opsonophagocytic activity (OPA) assays were similar between the two groups, confirming what was observed in clinical studies, serum samples from PCV13 vaccinees could induce additional non-OPA antibody-dependent functions, including monocyte phagocytosis and natural killer cell activation. In a multivariate modeling approach, distinct humoral profiles were demonstrated in each arm. Together, these results demonstrate that the glycoconjugate PCV13 vaccine induces an antigenically broader, more durable, polyfunctional antibody response. These findings may help explain the increased protection against S. pneumoniae colonization and noninvasive pneumonia and the longer duration of protection against invasive pneumococcal disease, mediated by PCV13.
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Affiliation(s)
- Leela R. L. Davies
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA.,Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Deniz Cizmeci
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Wenyue Guo
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | | | | | | | | | | | - Luis Jodar
- Pfizer Vaccines, Collegeville, PA 19426, USA
| | | | - Galit Alter
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA.,Corresponding author.
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22
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Liatsikos K, Hyder-Wright A, Pojar S, Chen T, Wang D, Davies K, Myerscough C, Reine J, Robinson RE, Urban B, Mitsi E, Solorzano C, Gordon SB, Quinn A, Pan K, Anderson AS, Theilacker C, Begier E, Gessner BD, Collins A, Ferreira DM. Protocol for a phase IV double-blind randomised controlled trial to investigate the effect of the 13-valent pneumococcal conjugate vaccine and the 23-valent pneumococcal polysaccharide vaccine on pneumococcal colonisation using the experimental human pneumococcal challenge model in healthy adults (PREVENTING PNEUMO 2). BMJ Open 2022; 12:e062109. [PMID: 35798520 PMCID: PMC9263934 DOI: 10.1136/bmjopen-2022-062109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/30/2022] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Despite widely available vaccinations, Streptococcus pneumoniae (SPN) remains a major cause of morbidity and mortality worldwide, causing community-acquired pneumonia, meningitis, otitis media, sinusitis and bacteraemia. Here, we summarise an ethically approved protocol for a double-blind, randomised controlled trial investigating the effect of the 13-valent pneumococcal conjugate vaccine (PCV13) and the 23-valent pneumococcal polysaccharide vaccine (PPV23) on pneumococcal nasopharyngeal colonisation acquisition, density and duration using experimental human pneumococcal challenge (EHPC). METHODS AND ANALYSIS Healthy adult participants aged 18-50 years will be randomised to receive PCV13, PPV23 or placebo and then undergo one or two EHPCs involving intranasal administration of SPN at 1-month post-vaccination with serotype 3 (SPN3) and 6 months with serotype 6B (SPN6B). Participants randomised to PCV13 and placebo will also be randomised to one of two clinically relevant SPN3 strains from distinct lineages within clonal complex 180, clades Ia and II, creating five study groups. Following inoculation, participants will be seen on days 2, 7, 14 and 23. During the follow-up period, we will monitor safety, colonisation status, density and duration, immune responses and antigenuria. The primary outcome of the study is comparing the rate of SPN3 acquisition between the vaccinated (PCV13 or PPV23) and unvaccinated (placebo) groups as defined by classical culture. Density and duration of colonisation, comparison of acquisition rates using molecular methods and evaluation of the above measurements for individual SPN3 clades and SPN6B form the secondary objectives. Furthermore, we will explore the immune responses associated with these vaccines, their effect on colonisation and the relationship between colonisation and urinary pneumococcal antigen detection. ETHICS AND DISSEMINATION The study is approved by the NHS Research and Ethics Committee (Reference: 20/NW/0097) and by the Medicines and Healthcare products Regulatory Agency (Reference: CTA 25753/0001/001-0001). Findings will be published in peer-reviewed journals. TRIAL REGISTRATION NUMBER ISRCTN15728847, NCT04974294.
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Affiliation(s)
| | - Angela Hyder-Wright
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Respiratory Research Group, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Sherin Pojar
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Tao Chen
- Global Health Trials Unit, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Duolao Wang
- Global Health Trials Unit, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Kelly Davies
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | | | - Jesus Reine
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Ryan E Robinson
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Respiratory Research Group, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Britta Urban
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Elena Mitsi
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Carla Solorzano
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Stephen B Gordon
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Liverpool School of Tropical Medicine, Blantyre, Malawi
| | - Angela Quinn
- Pfizer Vaccines, Pfizer Inc, Collegeville, Pennsylvania, USA
| | - Kaijie Pan
- Pfizer Vaccines, Pfizer Inc, Collegeville, Pennsylvania, USA
| | | | | | | | | | - Andrea Collins
- Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Respiratory Research Group, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
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Villar-Álvarez F, Rosa-Carrillo DDL, Fariñas-Guerrero F, Jiménez-Ruiz CA. Immunosenescence, immune fitness and vaccination schedule in the adult respiratory patient. OPEN RESPIRATORY ARCHIVES 2022. [PMID: 37496575 PMCID: PMC9109993 DOI: 10.1016/j.opresp.2022.100181] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Immunosenescence is the gradual deterioration of the immune system caused by advancing age. It is associated with a reduced ability to respond to infections and develop long-term immune memory. It plays a key role in the development of respiratory diseases that are more common in older people, such as asthma, COPD, diffuse interstitial disease and respiratory infections in the elderly. We call immune fitness the establishment of lifestyle habits that can improve our immune capacity. We now know that good eating habits, good social relationships, not smoking, limiting alcohol consumption, exercising, controlling stress levels and establishing a proper vaccination programme can slow down the process of immunosenescence. Influenza and pneumococcal vaccines (PCV13 and PPSV23 conjugate) are well established in the adult vaccination schedule. The new pneumococcal vaccines PCV15 and PCV20 will help to extend protection against pneumococcal disease in adults. The vaccine against COVID-19 is currently the most useful tool to prevent the disease and reduce its pathogenicity. COPD patients and others with respiratory diseases may benefit from prevention of herpes zoster and Bordetella pertussis through vaccination. Respiratory syncytial virus (RSV) vaccine may be another vaccine to be added to the schedule, pending the results of its studies.
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Fulop T, Larbi A, Pawelec G, Cohen AA, Provost G, Khalil A, Lacombe G, Rodrigues S, Desroches M, Hirokawa K, Franceschi C, Witkowski JM. Immunosenescence and Altered Vaccine Efficiency in Older Subjects: A Myth Difficult to Change. Vaccines (Basel) 2022; 10:vaccines10040607. [PMID: 35455356 PMCID: PMC9030923 DOI: 10.3390/vaccines10040607] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/05/2022] [Accepted: 04/08/2022] [Indexed: 12/14/2022] Open
Abstract
Organismal ageing is associated with many physiological changes, including differences in the immune system of most animals. These differences are often considered to be a key cause of age-associated diseases as well as decreased vaccine responses in humans. The most often cited vaccine failure is seasonal influenza, but, while it is usually the case that the efficiency of this vaccine is lower in older than younger adults, this is not always true, and the reasons for the differential responses are manifold. Undoubtedly, changes in the innate and adaptive immune response with ageing are associated with failure to respond to the influenza vaccine, but the cause is unclear. Moreover, recent advances in vaccine formulations and adjuvants, as well as in our understanding of immune changes with ageing, have contributed to the development of vaccines, such as those against herpes zoster and SARS-CoV-2, that can protect against serious disease in older adults just as well as in younger people. In the present article, we discuss the reasons why it is a myth that vaccines inevitably protect less well in older individuals, and that vaccines represent one of the most powerful means to protect the health and ensure the quality of life of older adults.
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Affiliation(s)
- Tamas Fulop
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada; (A.K.); (G.L.)
- Correspondence: (T.F.); (S.R.)
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Singapore 138648, Singapore;
| | - Graham Pawelec
- Department of Immunology, University of Tübingen, 72072 Tübingen, Germany;
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada
| | - Alan A. Cohen
- Groupe de Recherche PRIMUS, Department of Family Medicine, University of Sherbrooke, 3001 12e Ave N, Sherbrooke, QC J1H 5N4, Canada;
| | | | - Abedelouahed Khalil
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada; (A.K.); (G.L.)
| | - Guy Lacombe
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada; (A.K.); (G.L.)
| | - Serafim Rodrigues
- Ikerbasque, The Basque Foundation for Science, 48009 Bilbao, Spain;
- BCAM—The Basque Center for Applied Mathematics, 48009 Bilbao, Spain
- Correspondence: (T.F.); (S.R.)
| | - Mathieu Desroches
- MathNeuro Team, Inria Sophia Antipolis Méditerranée, CEDEX, 06902 Sophia Antipolis, France;
- The Jean Alexandre Dieudonné Laboratory, Université Côte d’Azur, CEDEX 2, 06108 Nice, France
| | - Katsuiku Hirokawa
- Institute of Health and Life Science, Tokyo Medical and Dental University, Tokyo 113-8510, Japan;
| | - Claudio Franceschi
- IRCCS Institute of Neurological Sciences of Bologna, Alma Mater Studiorum University of Bologna, 40126 Bologna, Italy;
- Department of Applied Mathematics and Laboratory of Systems Biology of Healthy Aging, Lobachevsky State University, 603000 Nizhny Novgorod, Russia
| | - Jacek M. Witkowski
- Department of Pathophysiology, Medical University of Gdansk, 80-210 Gdansk, Poland;
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