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Ghebrehewet S, Stewart AG, MacPherson P. A natural experiment during lockdown and on-going care-home COVID-19 outbreaks showed a single dose of vaccine reduced hospitalisation and deaths of care-home residents in North West England. Public Health 2024; 233:60-64. [PMID: 38850602 DOI: 10.1016/j.puhe.2024.05.002] [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: 01/13/2024] [Revised: 04/11/2024] [Accepted: 05/01/2024] [Indexed: 06/10/2024]
Abstract
OBJECTIVE To examine the effectiveness of one dose of the COVID-19 vaccine on care-home residents. STUDY DESIGN Natural experiment. METHODS We compared the effectiveness of single doses of Pfizer/BioNTech BNT162b2 (effective at 10 days) and AstraZeneca ChAdOx1 (effective at 14 days) vaccines in vaccinated and control (unvaccinated) homes. Using routine data, all care-homes reporting COVID-19 outbreaks between 11/12/2020 and 12/3/2021 in a sub-region of North West England were included. RESULTS Of 126 care-homes (4042 residents), with outbreaks, 55 (44%, 1686 residents) reported onset dates before vaccination commenced; 38 (30%, 1304 residents) reported onset < 10 (BNT162b2) and < 14 days (ChAdOx1) after vaccine administration; and 33 (26%, 1052 residents) reported onset > 10 (BNT162b2) and > 14 (ChAdOx1) days after vaccination. Eighty-nine (71%) homes used ChAdOx1 vaccine. A single dose of vaccine before the outbreak onset significantly lowered the risk of symptoms (reduced by 48%), positivity (by 65%), hospitalisation (by 68%), and death (by 81%). Some vaccine effectiveness was also noted in care-homes that received one dose of vaccine within 10-14 days of outbreak onset. The number needed to vaccinate to prevent one resident from COVID-19-related hospitalisation was 34, and death was 17. CONCLUSIONS This real-world, natural experiment adds to the evidence of COVID-19 vaccine effectiveness from different studies using varying designs. In the context of lockdown's impact on infection rates and on-going care-home outbreaks, a single dose of either ChAdOx1 or BNT162b2 vaccine had a significant impact on reducing COVID-19 related hospitalisation and death in care-home residents. Natural experiments should be used more in public health.
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Affiliation(s)
- S Ghebrehewet
- Health Protection, UK Health Security Agency North West, Cunard Building, Water Street, Liverpool L3 1DS, UK.
| | - A G Stewart
- College of Life and Environmental Science, University of Exeter, UK; Health Protection, UK Health Security Agency North West, Cunard Building, Liverpool L3 1DS, UK
| | - P MacPherson
- Global Public Health, School of Health and Wellbeing, University of Glasgow, Clarice Pears Building, Byers Road, Glasgow G12 8TA, UK; Communicable Disease Control, Public Health Scotland, UK; Clinical Research Department, London School of Hygiene and Tropical Medicine, Keppel St, London, UK
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2
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Marron L, Mateo-Urdiales A, O'Donnell J, Robinson E, Domegan L. The impact of the COVID-19 vaccination programme on symptomatic and severe SARS-CoV-2 infection during a period of Omicron variant dominance in Ireland, December 2021 to March 2023. Euro Surveill 2024; 29. [PMID: 38994604 PMCID: PMC11241852 DOI: 10.2807/1560-7917.es.2024.29.28.2300697] [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] [Indexed: 07/13/2024] Open
Abstract
BackgroundAs Ireland prepared for an autumn 2023 COVID-19 vaccination booster campaign, there was concern that vaccine fatigue would affect uptake, which has been abating.AimThis study aimed to quantify the direct impact of the COVID-19 vaccination programme in Ireland on averted COVID-19-related outcomes including symptomatic presentations to primary care/community testing centres, emergency department (ED) presentations, hospitalisations, intensive care unit (ICU) admissions and deaths, in individuals aged ≥ 50 years, during Omicron dominance.MethodsWe conducted a retrospective observational COVID-19 vaccine impact study in December 2021-March 2023 in Ireland. We used national data on notified outcomes and vaccine coverage, as well as vaccine effectiveness (VE) estimates, sourced from the World Health Organization's live systematic review of VE, to estimate the count and prevented fraction of outcomes in ≥ 50-year-olds averted by the COVID-19 vaccination programme in this age group.ResultsThe COVID-19 vaccination programme averted 48,551 symptomatic COVID-19 presentations to primary care/community testing centres (36% of cases expected in the absence of vaccination), 9,517 ED presentations (53% of expected), 102,160 hospitalisations (81% of expected), 3,303 ICU admissions (89% of expected) and 15,985 deaths (87% of expected).ConclusionsWhen Omicron predominated, the COVID-19 vaccination programme averted symptomatic and severe COVID-19 cases, including deaths due to COVID-19. In line with other international vaccine impact studies, these findings emphasise the benefits of COVID-19 vaccination for population health and the healthcare system and are relevant for informing COVID-19 booster vaccination programmes, pandemic preparedness and communicating the reason for and importance of COVID-19 vaccination in Ireland and internationally.
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Affiliation(s)
- Louise Marron
- European Centre for Disease Prevention and Control (ECDC) Fellowship Programme, Field Epidemiology path (EPIET), ECDC, Stockholm, Sweden
- Health Service Executive-Health Protection Surveillance Centre, Dublin, Ireland
| | - Alberto Mateo-Urdiales
- Department of Infectious Diseases, Istituto Superiore di Sanità (Italian National Institute of Health), Rome, Italy
| | - Joan O'Donnell
- Health Service Executive-Health Protection Surveillance Centre, Dublin, Ireland
| | - Eve Robinson
- Health Service Executive-Health Protection Surveillance Centre, Dublin, Ireland
| | - Lisa Domegan
- Health Service Executive-Health Protection Surveillance Centre, Dublin, Ireland
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Giannouchos TV, Hair NL, Olatosi B, Li X. Waning effectiveness of mRNA COVID-19 vaccines against inpatient and emergency department encounters. PLoS One 2024; 19:e0300198. [PMID: 38452010 PMCID: PMC10919609 DOI: 10.1371/journal.pone.0300198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
In the United States, most real-world estimates of COVID-19 vaccine effectiveness are based on data drawn from large health systems or sentinel populations. More data is needed to understand how the benefits of vaccination may vary across US populations with disparate risk profiles and policy contexts. We aimed to provide estimates of mRNA COVID-19 vaccine effectiveness against moderate and severe outcomes of COVID-19 based on state population-level data sources. Using statewide integrated administrative and clinical data and a test-negative case-control study design, we assessed mRNA COVID-19 vaccine effectiveness against SARS-CoV-2-related hospitalizations and emergency department visits among adults in South Carolina. We presented estimates of vaccine effectiveness at discrete time intervals for adults who received one, two or three doses of mRNA COVID-19 vaccine compared to adults who were unvaccinated. We also evaluated changes in vaccine effectiveness over time (waning) for the overall sample and in subgroups defined by age. We showed that while two doses of mRNA COVID-19 vaccine were initially highly effective, vaccine effectiveness waned as time elapsed since the second dose. Compared to protection against hospitalizations, protection against emergency department visits was found to wane more sharply. In all cases, a third dose of mRNA COVID-19 vaccine conferred significant gains in protection relative to waning protection after two doses. Further, over more than 120 days of follow-up, the data revealed relatively limited waning of vaccine effectiveness after a third dose of mRNA COVID-19 vaccine.
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Affiliation(s)
- Theodoros V. Giannouchos
- Department of Health Policy and Organization, The University of Alabama at Birmingham School of Public Health, Birmingham, AL, United States of America
| | - Nicole L. Hair
- Department of Health Services Policy and Management, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States of America
| | - Bankole Olatosi
- Department of Health Services Policy and Management, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States of America
- Big Data Health Science Research Center, University of South Carolina, Columbia, South Carolina, United States of America
| | - Xiaoming Li
- Big Data Health Science Research Center, University of South Carolina, Columbia, South Carolina, United States of America
- Department of Health Promotion, Education, and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States of America
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Paul P, El-Naas A, Hamad O, Salameh MA, Mhaimeed N, Laswi I, Abdelati AA, AlAnni J, Khanjar B, Al-Ali D, Pillai KV, Elshafeey A, Alroobi H, Burney Z, Mhaimeed O, Bhatti M, Sinha P, Almasri M, Aly A, Bshesh K, Chamseddine R, Khalil O, D'Souza A, Shree T, Mhaimeed N, Yagan L, Zakaria D. Effectiveness of the pre-Omicron COVID-19 vaccines against Omicron in reducing infection, hospitalization, severity, and mortality compared to Delta and other variants: A systematic review. Hum Vaccin Immunother 2023; 19:2167410. [PMID: 36915960 PMCID: PMC10054360 DOI: 10.1080/21645515.2023.2167410] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Despite widespread mass rollout programs, the rapid spread of the SARS-CoV-2 Omicron variant called into question the effectiveness of the existing vaccines against infection, hospitalization, severity, and mortality compared to previous variants. This systematic review summarizes and compares the effectiveness of the COVID-19 vaccines, with respect to the above outcomes in adults, children, and adolescents. A comprehensive literature search was undertaken on several databases. Only 51 studies met our inclusion criteria, revealing that the protection from primary vaccination against Omicron infection is inferior to protection against Delta and Alpha infections and wanes faster over time. However, mRNA vaccine boosters were reported to reestablish effectiveness, although to a lower extent against Omicron. Nonetheless, primary vaccination was shown to preserve strong protection against Omicron-associated hospitalization, severity, and death, even months after last dose. However, boosters provide more robust and longer-lasting protection against hospitalizations due to Omicron as compared to only primary series.
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Affiliation(s)
- Pradipta Paul
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Ahmed El-Naas
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Omar Hamad
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Mohammad A Salameh
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN, USA
| | - Nada Mhaimeed
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Ibrahim Laswi
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Ali A Abdelati
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Jamal AlAnni
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, USA
| | - Bushra Khanjar
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Department of Dermatology, Hamad Medical Corporation, Doha, Qatar
| | - Dana Al-Ali
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Department of Pediatrics, Hamad Medical Corporation, Doha, Qatar
| | - Krishnadev V Pillai
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Abdallah Elshafeey
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Department of Medicine, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Hasan Alroobi
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Zain Burney
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Medicine Institiution, Cleveland Clinic, Cleveland, OH, USA
| | - Omar Mhaimeed
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Department of Medicine, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Mohammad Bhatti
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Pratyaksha Sinha
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Muna Almasri
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Ahmed Aly
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Khalifa Bshesh
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Reem Chamseddine
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Omar Khalil
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Ashton D'Souza
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Thanu Shree
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Hamad Medical Corporation, Doha, Qatar h
| | - Narjis Mhaimeed
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
| | - Lina Yagan
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
- Department of Medicine, University of Pennsylvania Hospital, Philadelphia, PA, USA
| | - Dalia Zakaria
- Weill Cornell Medicine-Qatar, Cornell University, Education City, Qatar Foundation, Doha, Qatar
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Das R, Hyer RN, Burton P, Miller JM, Kuter BJ. Emerging heterologous mRNA-based booster strategies within the COVID-19 vaccine landscape. Hum Vaccin Immunother 2023; 19:2153532. [PMID: 36629006 PMCID: PMC9980456 DOI: 10.1080/21645515.2022.2153532] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Messenger RNA (mRNA)-based vaccine platforms used for the development of mRNA-1273 and BNT162b2 have provided a robust adaptable approach to offer protection against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, as variants of concern (VoCs), such as omicron and associated sub-variants, emerge, boosting strategies must also adapt to keep pace with the changing landscape. Heterologous vaccination regimens involving the administration of booster vaccines different than the primary vaccination series offer a practical, effective, and safe approach to continue to reduce the global burden of coronavirus disease 2019 (COVID-19). To understand the immunogenicity, effectiveness, and safety of heterologous mRNA-based vaccination strategies, relevant clinical and real-world observational studies were identified and summarized. Overall, heterologous boosting strategies with mRNA-based vaccines that are currently available and those in development will play an important global role in protecting individuals from COVID-19 caused by emerging VoCs.
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Affiliation(s)
- Rituparna Das
- Infectious Diseases, Moderna, Inc., Cambridge, MA, USA,CONTACT Rituparna Das Moderna, Inc., 200 Technology Square, Cambridge, MA02139, USA
| | - Randall N. Hyer
- Experimental Therapeutics, Baruch S. Blumberg Institute, Doylestown, PA, USA
| | - Paul Burton
- Infectious Diseases, Moderna, Inc., Cambridge, MA, USA
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Rahman MO, Kamigaki T, Thandar MM, Haruyama R, Yan F, Shibamura-Fujiogi M, Khin Maung Soe J, Islam MR, Yoneoka D, Miyahara R, Ota E, Suzuki M. Protection of the third-dose and fourth-dose mRNA vaccines against SARS-CoV-2 Omicron subvariant: a systematic review and meta-analysis. BMJ Open 2023; 13:e076892. [PMID: 38128943 DOI: 10.1136/bmjopen-2023-076892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
OBJECTIVES The rapid spread of the SARS-CoV-2 Omicron variant has raised concerns regarding waning vaccine-induced immunity and durability. We evaluated protection of the third-dose and fourth-dose mRNA vaccines against SARS-CoV-2 Omicron subvariant and its sublineages. DESIGN Systematic review and meta-analysis. DATA SOURCES Electronic databases and other resources (PubMed, Embase, CENTRAL, MEDLINE, CINAHL PLUS, APA PsycINFO, Web of Science, Scopus, ScienceDirect, MedRxiv and bioRxiv) were searched until December 2022. STUDY ELIGIBILITY CRITERIA We included studies that assessed the effectiveness of mRNA vaccine booster doses against SARS-CoV-2 infection and severe COVID-19 outcomes caused by the subvariant. DATA EXTRACTION AND SYNTHESIS Estimates of vaccine effectiveness (VE) at different time points after the third-dose and fourth-dose vaccination were extracted. Random-effects meta-analysis was used to compare VE of the third dose versus the primary series, no vaccination and the fourth dose at different time points. The certainty of the evidence was assessed by Grading of Recommendations, Assessments, Development and Evaluation approach. RESULTS This review included 50 studies. The third-dose VE, compared with the primary series, against SARS-CoV-2 infection was 48.86% (95% CI 44.90% to 52.82%, low certainty) at ≥14 days, and gradually decreased to 38.01% (95% CI 13.90% to 62.13%, very low certainty) at ≥90 days after the third-dose vaccination. The fourth-dose VE peaked at 14-30 days (56.70% (95% CI 50.36% to 63.04%), moderate certainty), then quickly declined at 61-90 days (22% (95% CI 6.40% to 37.60%), low certainty). Compared with no vaccination, the third-dose VE was 75.84% (95% CI 40.56% to 111.12%, low certainty) against BA.1 infection, and 70.41% (95% CI 49.94% to 90.88%, low certainty) against BA.2 infection at ≥7 days after the third-dose vaccination. The third-dose VE against hospitalisation remained stable over time and maintained 79.30% (95% CI 58.65% to 99.94%, moderate certainty) at 91-120 days. The fourth-dose VE up to 60 days was 67.54% (95% CI 59.76% to 75.33%, moderate certainty) for hospitalisation and 77.88% (95% CI 72.55% to 83.21%, moderate certainty) for death. CONCLUSION The boosters provided substantial protection against severe COVID-19 outcomes for at least 6 months, although the duration of protection remains uncertain, suggesting the need for a booster dose within 6 months of the third-dose or fourth-dose vaccination. However, the certainty of evidence in our VE estimates varied from very low to moderate, indicating significant heterogeneity among studies that should be considered when interpreting the findings for public health policies. PROSPERO REGISTRATION NUMBER CRD42023376698.
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Affiliation(s)
- Md Obaidur Rahman
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Taro Kamigaki
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Moe Moe Thandar
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Rei Haruyama
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Fangyu Yan
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Miho Shibamura-Fujiogi
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - July Khin Maung Soe
- Graduate School of Public Health, St Luke's International University, Chuo-ku, Tokyo, Japan
| | - Md Rafiqul Islam
- Department of Population Science and Human Resource Development, University of Rajshahi, Rajshahi, Bangladesh
| | - Daisuke Yoneoka
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Reiko Miyahara
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Erika Ota
- Graduate School of Nursing Science, Department of Global Health Nursing, St Luke's International University, Chuo-ku, Tokyo, Japan
| | - Motoi Suzuki
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
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Song S, Madewell ZJ, Liu M, Longini IM, Yang Y. Effectiveness of SARS-CoV-2 vaccines against Omicron infection and severe events: a systematic review and meta-analysis of test-negative design studies. Front Public Health 2023; 11:1195908. [PMID: 37361171 PMCID: PMC10289159 DOI: 10.3389/fpubh.2023.1195908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/18/2023] [Indexed: 06/28/2023] Open
Abstract
Background A rapidly growing body was observed of literature evaluating the vaccine effectiveness (VE) against Omicron in test-negative design studies. Methods We systematically searched papers that evaluated VE of SARS-CoV-2 vaccines on PubMed, Web of Science, Cochrane Library, Google Scholar, Embase, Scopus, bioRxiv, and medRxiv published from November 26th, 2021, to June 27th, 2022 (full doses and the first booster), and to January 8th, 2023 (the second booster). The pooled VE against Omicron-associated infection and severe events were estimated. Results From 2,552 citations identified, 42 articles were included. The first booster provided stronger protection against Omicron than full doses alone, shown by VE estimates of 53.1% (95% CI: 48.0-57.8) vs. 28.6% (95% CI: 18.5-37.4) against infection and 82.5% (95% CI: 77.8-86.2) vs. 57.3% (95% CI: 48.5-64.7) against severe events. The second booster offered strong protection among adults within 60 days of vaccination against infection (VE=53.1%, 95% CI: 48.0-57.8) and severe events (VE=87.3% (95% CI: 75.5-93.4), comparable to the first booster with corresponding VE estimates of 59.9% against infection and 84.8% against severe events. The VE estimates of booster doses against severe events among adults sustained beyond 60 days, 77.6% (95% CI: 69.4-83.6) for first and 85.9% (95% CI: 80.3-89.9) for the second booster. The VE estimates against infection were less sustainable regardless of dose type. Pure mRNA vaccines provided comparable protection to partial mRNA vaccines, but both provided higher protection than non-mRNA vaccines. Conclusions One or two SARS-CoV-2 booster doses provide considerable protection against Omicron infection and substantial and sustainable protection against Omicron-induced severe clinical outcomes.
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Affiliation(s)
- Shangchen Song
- Department of Biostatistics, College of Public Health and Health professions and Emerging Pathogens Institute, University of Florida, Gainesville, FL, United States
| | - Zachary J. Madewell
- Department of Biostatistics, College of Public Health and Health professions and Emerging Pathogens Institute, University of Florida, Gainesville, FL, United States
| | - Mingjin Liu
- Department of Biostatistics, College of Public Health and Health professions and Emerging Pathogens Institute, University of Florida, Gainesville, FL, United States
| | - Ira M. Longini
- Department of Biostatistics, College of Public Health and Health professions and Emerging Pathogens Institute, University of Florida, Gainesville, FL, United States
| | - Yang Yang
- Department of Statistics, Franklin College of Arts and Sciences, University of Georgia, Athens, GA, United States
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Shirata C, Halkic N. Impact of COVID-19 pandemic on surgical outcomes after hepatopancreatobiliary (HPB) surgery. Glob Health Med 2023; 5:67-69. [PMID: 37128228 PMCID: PMC10130550 DOI: 10.35772/ghm.2023.01015] [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: 03/07/2023] [Accepted: 03/24/2023] [Indexed: 05/03/2023]
Abstract
COVID-19 pandemic has disrupted healthcare systems worldwide, causing the postponement or cancellation of millions of elective surgeries. It is essential for hepatopancreatobiliary (HPB) surgeons to well understand the perioperative risk and management of HPB surgery during the COVID-19 pandemic, including the impact of preoperative COVID-19 infection and timing of surgery, the impact of COVID-19 infection on postoperative mortality, the postoperative pulmonary complications in patients with perioperative COVID-19 infection, and the postoperative complications without pulmonary involvement. Perioperative COVID-19 infection increases the risk of postoperative mortality and pulmonary complications in patients undergoing abdominal surgery. Furthermore, in some regions, the COVID-19 vaccine's availability is still limited, leading to an increase in the number of cases and potential medical collapse, which could hinder the improvement of HPB postoperative mortality rates. The timing of surgery for COVID-19 positive patients should be carefully considered, balancing the potential risks of delay with the risks of surgery during the infection.
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Affiliation(s)
| | - Nermin Halkic
- Address correspondence to:Nermin Halkic, Department of Visceral Surgery, Lausanne University Hospital CHUV, Rue du Bugnon 46, 1011 Lausanne, Switzerland. E-mail:
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Mohammed H, Pham-Tran DD, Yeoh ZYM, Wang B, McMillan M, Andraweera PH, Marshall HS. A Systematic Review and Meta-Analysis on the Real-World Effectiveness of COVID-19 Vaccines against Infection, Symptomatic and Severe COVID-19 Disease Caused by the Omicron Variant (B.1.1.529). Vaccines (Basel) 2023; 11:224. [PMID: 36851102 PMCID: PMC9965204 DOI: 10.3390/vaccines11020224] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/12/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
Real-world data on the effectiveness of COVID-19 vaccines against the Omicron variant (B.1.1.529) is limited. This systematic review aimed to investigate the real-world effectiveness and durability of protection conferred by primary course and booster vaccines against confirmed Omicron infection, and severe outcomes. We systematically searched literature up to 1 August 2022. Meta-analysis was performed with the DerSimonian-Laird random-effects model to estimate the pooled vaccine effectiveness (VE). Overall, 28 studies were included representing 11 million individuals. The pooled VE against Omicron infection was 20.4% (95%CI: 12.1-28.7%) and 23.4% (95%CI: 13.5-33.3%) against symptomatic infection with variation based on vaccine type and age groups. VE sharply declined from 28.1% (95%CI: 19.1-37.1%) at three months to 3.9% (95%CI: -24.8-32.7%) at six months. Similar trends were observed for symptomatic Omicron infection. A booster dose restored protection against Omicron infection up to 51.1% (95%CI: 43.8-58.3%) and 57.3% (95%CI: 54.0-60.5%) against symptomatic infection within three months; however, this waned to 32.8% (95%CI: 16.8-48.7%) within six months. VE against severe Omicron infection following the primary course was 63.6% (95%CI: 57.5-69.7%) at three months, decreased to 49% (95%CI: 35.7-63.4%) within six months, and increased to 86% after the first or second booster dose.
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Affiliation(s)
- Hassen Mohammed
- Vaccinology and Immunology Research Trials Unit, Women’s and Children’s Health Network, Adelaide, SA 5006, Australia
- Robinson Research Institute and Adelaide Medical School, the University of Adelaide, Adelaide, SA 5006, Australia
| | - Dan Duy Pham-Tran
- Robinson Research Institute and Adelaide Medical School, the University of Adelaide, Adelaide, SA 5006, Australia
| | - Zi Yi Michelle Yeoh
- Robinson Research Institute and Adelaide Medical School, the University of Adelaide, Adelaide, SA 5006, Australia
| | - Bing Wang
- Vaccinology and Immunology Research Trials Unit, Women’s and Children’s Health Network, Adelaide, SA 5006, Australia
- Robinson Research Institute and Adelaide Medical School, the University of Adelaide, Adelaide, SA 5006, Australia
| | - Mark McMillan
- Vaccinology and Immunology Research Trials Unit, Women’s and Children’s Health Network, Adelaide, SA 5006, Australia
- Robinson Research Institute and Adelaide Medical School, the University of Adelaide, Adelaide, SA 5006, Australia
| | - Prabha H. Andraweera
- Vaccinology and Immunology Research Trials Unit, Women’s and Children’s Health Network, Adelaide, SA 5006, Australia
- Robinson Research Institute and Adelaide Medical School, the University of Adelaide, Adelaide, SA 5006, Australia
| | - Helen S. Marshall
- Vaccinology and Immunology Research Trials Unit, Women’s and Children’s Health Network, Adelaide, SA 5006, Australia
- Robinson Research Institute and Adelaide Medical School, the University of Adelaide, Adelaide, SA 5006, Australia
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Dhama K, Nainu F, Frediansyah A, Yatoo MI, Mohapatra RK, Chakraborty S, Zhou H, Islam MR, Mamada SS, Kusuma HI, Rabaan AA, Alhumaid S, Mutair AA, Iqhrammullah M, Al-Tawfiq JA, Mohaini MA, Alsalman AJ, Tuli HS, Chakraborty C, Harapan H. Global emerging Omicron variant of SARS-CoV-2: Impacts, challenges and strategies. J Infect Public Health 2023; 16:4-14. [PMID: 36446204 PMCID: PMC9675435 DOI: 10.1016/j.jiph.2022.11.024] [Citation(s) in RCA: 99] [Impact Index Per Article: 99.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/06/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022] Open
Abstract
Newly emerging variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are continuously posing high global public health concerns and panic resulting in waves of coronavirus disease 2019 (COVID-19) pandemic. Depending on the extent of genomic variations, mutations and adaptation, few of the variants gain the ability to spread quickly across many countries, acquire higher virulency and ability to cause severe disease, morbidity and mortality. These variants have been implicated in lessening the efficacy of the current COVID-19 vaccines and immunotherapies resulting in break-through viral infections in vaccinated individuals and recovered patients. Altogether, these could hinder the protective herd immunity to be achieved through the ongoing progressive COVID-19 vaccination. Currently, the only variant of interest of SARS-CoV-2 is Omicron that was first identified in South Africa. In this review, we present the overview on the emerging SARS-CoV-2 variants with a special focus on the Omicron variant, its lineages and hybrid variants. We discuss the hypotheses of the origin, genetic change and underlying molecular mechanism behind higher transmissibility and immune escape of Omicron variant. Major concerns related to Omicron including the efficacy of the current available immunotherapeutics and vaccines, transmissibility, disease severity, and mortality are discussed. In the last part, challenges and strategies to counter Omicron variant, its lineages and hybrid variants amid the ongoing COVID-19 pandemic are presented.
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Affiliation(s)
- Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, Uttar Pradesh, India.
| | - Firzan Nainu
- Department of Pharmacy, Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Andri Frediansyah
- Research Division for Natural Product Technology (BPTBA), National Research and Innovation Agency (BRIN), Gunungkidul, Yogyakarta 55861, Indonesia
| | - Mohd Iqbal Yatoo
- Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry Shuhama, Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir 190006, India
| | - Ranjan K Mohapatra
- Department of Chemistry, Government College of Engineering, Keonjhar 758002, Odisha, India
| | - Sandip Chakraborty
- Department of Veterinary Microbiology, College of Veterinary Sciences and Animal Husbandry, R.K. Nagar, West Tripura, Tripura, India
| | - Hao Zhou
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Microbiology, NYU Grossman School of Medicine, New York 10016, USA
| | - Md Rabiul Islam
- Department of Pharmacy, University of Asia Pacific, 74/A Green Road, Farmgate, Dhaka 1205, Bangladesh
| | - Sukamto S Mamada
- Department of Pharmacy, Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Hendrix Indra Kusuma
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; Biology Education Department, Faculty of Tarbiyah and Teacher Training, Universitas Islam Negeri Ar-Raniry, Jl. Syeikh Abdur Rauf, Kopelma Darussalaml, Banda Aceh 23111, Indonesia
| | - Ali A Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran 31311, Saudi Arabia; College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia; Department of Public Health and Nutrition, The University of Haripur, Haripur 22610, Pakistan
| | - Saad Alhumaid
- Administration of Pharmaceutical Care, Al-Ahsa Health Cluster, Ministry of Health, Al-Ahsa 31982, Saudi Arabia
| | - Abbas Al Mutair
- Research Center, Almoosa Specialist Hospital, Al-Ahsa 36342, Saudi Arabia; College of Nursing, Prince Nora University, Riyadh 11564, Saudi Arabia; School of Nursing, Wollongong University, Wollongong, NSW 2522, Australia; Nursing Department, Prince Sultan Military College of Health Sciences, Dhahran 33048, Saudi Arabia
| | - Muhammad Iqhrammullah
- Graduate School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Jaffar A Al-Tawfiq
- Specialty Internal Medicine and Quality Department, Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia; Infectious Disease Division, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA; Infectious Disease Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mohammed Al Mohaini
- Basic Sciences Department, College of Applied Medical Sciences, King Saud bin Abdulaziz University for Health Sciences, Al-Ahsa 31982, Saudi Arabia; King Abdullah International Medical Research Center, Al-Ahsa 31982, Saudi Arabia
| | - Abdulkhaliq J Alsalman
- Department of Clinical Pharmacy, Faculty of Pharmacy, Northern Border University, Rafha 91911, Saudi Arabia
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar University, Mullana, Ambala 133207, Haryana, India
| | - Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Barasat-Barrackpore Road, Kolkata, West Bengal 700126, India
| | - Harapan Harapan
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia; Tropical Diseases Centre, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia; Department of Microbiology, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia.
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Public misperceptions of COVID-19 vaccine effectiveness and waning: experimental evidence from Ireland. Public Health 2023; 214:81-84. [PMID: 36521276 PMCID: PMC9650565 DOI: 10.1016/j.puhe.2022.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The study set out to measure public understanding of COVID-19 vaccine effectiveness (VE) and how effectiveness wanes with time since vaccination. Because perceived VE is a strong predictor of vaccine uptake, measuring perceptions can inform public health policy and communications. STUDY DESIGN Online randomised experiment. METHODS The study was undertaken in Ireland, which has high vaccination rates. A nationally representative sample (n = 2000) responded to a scenario designed to measure perceptions of COVID-19 VE against mortality. The length of time since vaccination in the scenario was randomly varied across four treatment arms (2 weeks, 3 months, 6 months, and 9 months). RESULTS The public underestimates VE, with substantial variation in perceptions. A majority (57%) gave responses implying perceived VE against mortality of 0-85%, i.e., below scientific estimates. Among this group, mean perceived VE was just 49%. Over a quarter (26%) gave responses implying perceived VE greater than 95%, i.e., above scientific estimates. Comparing the four treatment groups, responses took no account of vaccine waning. Perceived VE was actually higher 9 months after vaccination than 2 weeks after vaccination. CONCLUSION Despite high vaccination rates, most of the public in Ireland underestimates VE. Furthermore, the general public has not absorbed the concept of vaccine waning in the months following vaccination. Both misperceptions may reduce vaccine uptake, unless public health authorities act to correct them through improved communication.
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Lau SSS, Ho CCY, Pang RCK, Su S, Kwok H, Fung SF, Ho RC. Measurement of burnout during the prolonged pandemic in the Chinese zero-COVID context: COVID-19 burnout views scale. Front Public Health 2022; 10:1039450. [PMID: 36438233 PMCID: PMC9686433 DOI: 10.3389/fpubh.2022.1039450] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/11/2022] [Indexed: 11/11/2022] Open
Abstract
Burnout is an important public health issue at times of the COVID-19 pandemic. Current measures which focus on work-based burnout have limitations in length and/or relevance. When stepping into the post-pandemic as a new Norm Era, the burnout scale for the general population is urgently needed to fill the gap. This study aimed to develop a COVID-19 Burnout Views Scale (COVID-19 BVS) to measure burnout views of the general public in a Chinese context and examine its psychometric properties. A multiphase approach including literature review, expert consultation, and pilot testing was adopted in developing the scale. The scale was administered to a sample of 1,078 of the general public in Hong Kong with an average age of 34.45 years (SD = 12.47). Exploratory and Confirmatory Factor Analyses suggested a 5-item unidimensional model of COVID-19 BVS. The CFA results indicated that the COVID-19 BVS had a good model fit, as χ2 (10.054)/5 = 2.01, SRMR = 0.010, CFI = 0.998, RMSEA = 0.031. Five items were maintained in EFA with high internal consistency in terms of Cronbach's α of 0.845 and McDonald's ω coefficient of 0.87, and the corrected item-to-total correlations of 0.512 to 0.789 are way above the acceptable range. The KMO values of 0.841 and Bartlett's Test of Sphericity (p < 0.01) verified the normal distribution of the EFA and the adequacy of the EFA sampling. The analyses suggest that the COVID-19 BVS is a promising tool for assessing burnout views on the impacts of the epidemic on the Chinese general populations.
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Affiliation(s)
- Sam S. S. Lau
- Research Centre for Environment and Human Health, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,Multidisciplinary Research Centre, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,College of International Education, Hong Kong Baptist University, Hong Kong, China,Institute of Bioresources and Agriculture, Hong Kong Baptist University, Hong Kong, China,*Correspondence: Sam S. S. Lau
| | - Cherry C. Y. Ho
- Research Centre for Environment and Human Health, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,Multidisciplinary Research Centre, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,Division of Nursing Education, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China
| | - Rebecca C. K. Pang
- Research Centre for Environment and Human Health, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,Multidisciplinary Research Centre, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,Division of Nursing Education, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China
| | - Susan Su
- Research Centre for Environment and Human Health, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,Multidisciplinary Research Centre, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,College of International Education, Hong Kong Baptist University, Hong Kong, China
| | - Heather Kwok
- Research Centre for Environment and Human Health, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,Multidisciplinary Research Centre, School of Continuing Education, Hong Kong Baptist University, Hong Kong, China,College of International Education, Hong Kong Baptist University, Hong Kong, China
| | - Sai-fu Fung
- Department of Social and Behavioural Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Roger C. Ho
- Department of Psychological Medicine, National University of Singapore, Singapore, Singapore
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Gabrielli M. COVID-19 in Older Adults at the Time of the Omicron Variant. J Clin Med 2022; 11:5273. [PMID: 36142920 PMCID: PMC9501094 DOI: 10.3390/jcm11185273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 02/05/2023] Open
Abstract
Since its outbreak, COVID-19 has had a significant impact on older adults worldwide [...].
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Affiliation(s)
- Maurizio Gabrielli
- Department of Emergency, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Largo Gemelli 8, 00168 Rome, Italy
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