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  1. Article ; Online: Ceci n'est pas un lit. Base capacity healthcare matters in a pandemic.

    Beutels, Philippe / Verelst, Frederik

    The Lancet regional health. Europe

    2021  Volume 2, Page(s) 100033

    Language English
    Publishing date 2021-01-13
    Publishing country England
    Document type Journal Article
    ISSN 2666-7762
    ISSN (online) 2666-7762
    DOI 10.1016/j.lanepe.2021.100033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Ceci n'est pas un lit. Base capacity healthcare matters in a pandemic

    Philippe Beutels / Frederik Verelst

    The Lancet Regional Health. Europe, Vol 2, Iss , Pp 100033- (2021)

    2021  

    Keywords Public aspects of medicine ; RA1-1270
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Determinants of basic childhood vaccination coverage in European and OECD countries.

    Varbanova, Vladimira / Verelst, Frederik / Hens, Niel / Beutels, Philippe

    Human vaccines & immunotherapeutics

    2022  Volume 18, Issue 6, Page(s) 2123883

    Abstract: Vaccination coverage varies between countries and over time. Using official databases, we extracted data on 50 national-level immunization, socio-economic, demographic, healthcare, and cultural factors, and the uptake of the third dose of diphtheria ... ...

    Abstract Vaccination coverage varies between countries and over time. Using official databases, we extracted data on 50 national-level immunization, socio-economic, demographic, healthcare, and cultural factors, and the uptake of the third dose of diphtheria toxoid, tetanus toxoid, and pertussis vaccines (DTP3) and the first dose of measles-containing vaccines (MCV1) for 61 countries between 1990 and 2019. The main branch of the analysis included all covariates, while a secondary branch excluded life-expectancy and child mortality. The statistical analysis was completed in three stages: a variable-selection stage via random forests; multilevel multiple imputation for missing data in the reduced dataset; and generalized estimating equations (GEE) over all imputed datasets with pooled results. Less than 20 covariates were retained after variable-selection. Among a relatively small number of statistically significant (
    Language English
    Publishing date 2022-09-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2664176-8
    ISSN 2164-554X ; 2164-5515
    ISSN (online) 2164-554X
    ISSN 2164-5515
    DOI 10.1080/21645515.2022.2123883
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: The potential public health impact of the respiratory syncytial virus prefusion F protein vaccine in people aged ≥60 years in Japan: results of a Markov model analysis.

    Kurai, Daisuke / Mizukami, Akiko / Preckler, Victor / Verelst, Frederik / Molnar, Daniel / Matsuki, Taizo / Ho, Yufan / Igarashi, Ataru

    Expert review of vaccines

    2024  Volume 23, Issue 1, Page(s) 303–311

    Abstract: Background: Respiratory syncytial virus (RSV), a common respiratory pathogen, can lead to severe symptoms, especially in older adults (OA). A recently developed RSV prefusion F protein (RSVPreF3 OA) vaccine confers high protection against RSV lower ... ...

    Abstract Background: Respiratory syncytial virus (RSV), a common respiratory pathogen, can lead to severe symptoms, especially in older adults (OA). A recently developed RSV prefusion F protein (RSVPreF3 OA) vaccine confers high protection against RSV lower respiratory tract disease (LRTD) over two full RSV seasons. The aim of this study was to assess the potential public health impact of RSVPreF3 OA vaccination in the Japanese OA population.
    Research design and methods: A static Markov model was used to estimate the number of symptomatic RSV cases, hospitalizations and deaths in the Japanese population aged ≥ 60 years over a 3-year time horizon. Japan-specific RSV epidemiology and healthcare resource use parameters were used; vaccine efficacy was derived from a phase 3 randomized study (AReSVi-006, NCT04886596). Vaccination coverage was set to 50%.
    Results: Without vaccination, >5 million RSV acute respiratory illness (ARI) would occur (2.5 million LRTD and 2.8 million upper respiratory tract infections) leading to ~ 3.5 million outpatient visits, >534,000 hospitalizations and ~ 25,500 RSV-related deaths over 3 years. Vaccination could prevent > 1 million RSV-ARI cases, 728,000 outpatient visits, 143,000 hospitalizations and 6,840 RSV-related deaths.
    Conclusions: RSVPreF3 OA vaccination is projected to have a substantial public health impact by reducing RSV-related morbidity and mortality in the OA population.
    MeSH term(s) Humans ; Aged ; Respiratory Syncytial Virus Vaccines ; Japan/epidemiology ; Public Health ; Respiratory Syncytial Virus Infections/epidemiology ; Respiratory Syncytial Virus Infections/prevention & control ; Respiratory Syncytial Virus, Human ; Antibodies, Viral
    Chemical Substances Respiratory Syncytial Virus Vaccines ; Antibodies, Viral
    Language English
    Publishing date 2024-03-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 2181284-6
    ISSN 1744-8395 ; 1476-0584
    ISSN (online) 1744-8395
    ISSN 1476-0584
    DOI 10.1080/14760584.2024.2323128
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Public Health Impact of the Adjuvanted RSVPreF3 Vaccine for Respiratory Syncytial Virus Prevention Among Older Adults in the United States.

    Molnar, Daniel / La, Elizabeth M / Verelst, Frederik / Poston, Sara / Graham, Jonathan / Van Bellinghen, Laure-Anne / Curran, Desmond

    Infectious diseases and therapy

    2024  

    Abstract: Introduction: Respiratory syncytial virus (RSV) is an important cause of lower respiratory tract disease in older adults, resulting in substantial morbidity and mortality.: Methods: This study estimates the public health impact of vaccination with ... ...

    Abstract Introduction: Respiratory syncytial virus (RSV) is an important cause of lower respiratory tract disease in older adults, resulting in substantial morbidity and mortality.
    Methods: This study estimates the public health impact of vaccination with the adjuvanted RSVPreF3 vaccine among adults aged ≥ 60 years in the United States (US). A static, multi-cohort Markov model was used to estimate RSV-related outcomes over a 3-year time horizon for scenarios with and without one-time RSV vaccination. The base-case analysis assumed the same vaccination coverage as for influenza vaccines, with key epidemiology and vaccine inputs obtained from the published literature and phase 3 clinical trial results for the adjuvanted RSVPreF3 vaccine. Model outcomes included the clinical burden of RSV (symptomatic RSV acute respiratory illness [RSV-ARI] cases [classified as upper or lower respiratory tract disease], pneumonia complications, and mortality) and RSV-related healthcare resource use (hospitalizations, emergency department visits, outpatient visits, and antibiotic prescriptions).
    Results: In the base-case analysis, approximately 56.7 million adults aged ≥ 60 years received the vaccine, resulting in 2,954,465 fewer symptomatic RSV-ARI cases over 3 years compared with no vaccination, including 321,019 fewer X-ray confirmed pneumonia cases and 16,660 fewer RSV-related deaths. Vaccination also prevented a substantial number of RSV-related hospitalizations (203,891), emergency department visits (164,060), outpatient visits (1,577,586), and antibiotic prescriptions (1,343,915) over the 3-year period. A considerable public health impact was observed across a range of sensitivity analyses.
    Conclusions: These findings highlight the potential of the adjuvanted RSVPreF3 vaccine to substantially reduce RSV disease burden among US older adults aged ≥ 60 years.
    Language English
    Publishing date 2024-03-20
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2701611-0
    ISSN 2193-6382 ; 2193-8229
    ISSN (online) 2193-6382
    ISSN 2193-8229
    DOI 10.1007/s40121-024-00939-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: No Such Thing as a Free-Rider? Understanding Drivers of Childhood and Adult Vaccination through a Multicountry Discrete Choice Experiment.

    Verelst, Frederik / Kessels, Roselinde / Willem, Lander / Beutels, Philippe

    Vaccines

    2021  Volume 9, Issue 3

    Abstract: Increased vaccine hesitancy and refusal negatively affects vaccine uptake, leading to the reemergence of vaccine preventable diseases. We aim to quantify the relative importance of factors people consider when making vaccine decisions for themselves, or ... ...

    Abstract Increased vaccine hesitancy and refusal negatively affects vaccine uptake, leading to the reemergence of vaccine preventable diseases. We aim to quantify the relative importance of factors people consider when making vaccine decisions for themselves, or for their child, with specific attention for underlying motives arising from context, such as required effort (accessibility) and opportunism (free riding on herd immunity). We documented attitudes towards vaccination and performed a discrete choice experiment in 4802 respondents in The United Kingdom, France and Belgium, eliciting preferences for six attributes: (1) vaccine effectiveness, (2) vaccine preventable disease burden, (3) vaccine accessibility in terms of copayment, vaccinator and administrative requirements, (4) frequency of mild vaccine-related side-effects, (5) vaccination coverage in the country's population and (6) local vaccination coverage in personal networks. We distinguished adults deciding on vaccination for themselves from parents deciding for their youngest child. While all attributes were found to be significant, vaccine effectiveness and accessibility stood out in all (sub)samples, followed by vaccine preventable disease burden. We confirmed that people attach more value to severity of disease compared to its frequency, and discovered that peer influence dominates free-rider motives, especially for the vaccination of children. These behavioral data are insightful for policy and are essential to parameterize dynamic vaccination behavior in simulation models. In contrast to what most game theoretical models assume, social norms dominate free-rider incentives. Policy-makers and healthcare workers should actively communicate on high vaccination coverage, and draw attention to the effectiveness of vaccines while optimizing their practical accessibility.
    Language English
    Publishing date 2021-03-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines9030264
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Workplace influenza vaccination to reduce employee absenteeism: An economic analysis from the employers' perspective.

    Verelst, Frederik / Beutels, Philippe / Hens, Niel / Willem, Lander

    Vaccine

    2021  Volume 39, Issue 14, Page(s) 2005–2015

    Abstract: Background: Each year, up to 10% of unvaccinated adults contracts seasonal influenza, with half of this proportion developing symptoms. As a result, employers experience significant economic losses in terms of employee absenteeism. Influenza vaccines ... ...

    Abstract Background: Each year, up to 10% of unvaccinated adults contracts seasonal influenza, with half of this proportion developing symptoms. As a result, employers experience significant economic losses in terms of employee absenteeism. Influenza vaccines can be instrumental in reducing this burden. Workplace vaccination is expected to reduce employee absenteeism more than linearly as a result of positive externalities. It remains unclear whether workplace influenza vaccination yields a positive return on investment.
    Methods: We simulated the spread of influenza in the seasons 2011-12 up to 2017-18 in Belgium by means of a compartmental transmission model. We accounted for age-specific social contact patterns and included reduced contact behavior when symptomatically infected. We simulated the impact of employer-funded influenza vaccination at the workplace and performed a cost-benefit analysis to assess the employers' return on workplace vaccination. Furthermore, we look into the cost-benefit of rewarding vaccinated employees by offering an additional day off.
    Results: Workplace vaccination reduced the burden of influenza both on the workplace and in the population at large. Compared to the current vaccine coverage - 21% in the population at large - an employee vaccine coverage of 90% could avert an additional 355 000 cases, of which about 150 000 in the employed population and 205 000 in the unemployed population. While seasonal influenza vaccination has been cost-saving on average at about €10 per vaccinated employee, the cost-benefit analysis was prone to between-season variability.
    Conclusions: Vaccinated employees can serve as a barrier to limit the spread of influenza in the population, reducing the attack rate by 78% at an employee coverage of 90%. While workplace vaccination is relatively inexpensive (due to economies of scale) and convenient, the return on investment is volatile. Government subsidies can be pivotal to encourage employers to provide vaccination at the workplace with positive externalities to society as a whole.
    MeSH term(s) Absenteeism ; Adult ; Belgium ; Cost-Benefit Analysis ; Humans ; Influenza Vaccines ; Influenza, Human/prevention & control ; Vaccination ; Workplace
    Chemical Substances Influenza Vaccines
    Language English
    Publishing date 2021-02-23
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2021.02.020
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: No Such Thing as a Free-Rider? Understanding Drivers of Childhood and Adult Vaccination through a Multicountry Discrete Choice Experiment

    Frederik Verelst / Roselinde Kessels / Lander Willem / Philippe Beutels

    Vaccines, Vol 9, Iss 264, p

    2021  Volume 264

    Abstract: Increased vaccine hesitancy and refusal negatively affects vaccine uptake, leading to the reemergence of vaccine preventable diseases. We aim to quantify the relative importance of factors people consider when making vaccine decisions for themselves, or ... ...

    Abstract Increased vaccine hesitancy and refusal negatively affects vaccine uptake, leading to the reemergence of vaccine preventable diseases. We aim to quantify the relative importance of factors people consider when making vaccine decisions for themselves, or for their child, with specific attention for underlying motives arising from context, such as required effort (accessibility) and opportunism (free riding on herd immunity). We documented attitudes towards vaccination and performed a discrete choice experiment in 4802 respondents in The United Kingdom, France and Belgium, eliciting preferences for six attributes: (1) vaccine effectiveness, (2) vaccine preventable disease burden, (3) vaccine accessibility in terms of copayment, vaccinator and administrative requirements, (4) frequency of mild vaccine-related side-effects, (5) vaccination coverage in the country’s population and (6) local vaccination coverage in personal networks. We distinguished adults deciding on vaccination for themselves from parents deciding for their youngest child. While all attributes were found to be significant, vaccine effectiveness and accessibility stood out in all (sub)samples, followed by vaccine preventable disease burden. We confirmed that people attach more value to severity of disease compared to its frequency, and discovered that peer influence dominates free-rider motives, especially for the vaccination of children. These behavioral data are insightful for policy and are essential to parameterize dynamic vaccination behavior in simulation models. In contrast to what most game theoretical models assume, social norms dominate free-rider incentives. Policy-makers and healthcare workers should actively communicate on high vaccination coverage, and draw attention to the effectiveness of vaccines while optimizing their practical accessibility.
    Keywords vaccination ; infectious disease ; behavior ; free-riding ; social norms ; discrete choice experiment ; Medicine ; R
    Subject code 360
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Indications for healthcare surge capacity in European countries facing an exponential increase in coronavirus disease (COVID-19) cases, March 2020.

    Verelst, Frederik / Kuylen, Elise / Beutels, Philippe

    Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

    2020  Volume 25, Issue 13

    Abstract: European healthcare systems face extreme pressure from coronavirus disease (COVID-19). We relate country-specific accumulated COVID-19 deaths (intensity approach) and active COVID-19 cases (magnitude approach) to measures of healthcare system capacity: ... ...

    Abstract European healthcare systems face extreme pressure from coronavirus disease (COVID-19). We relate country-specific accumulated COVID-19 deaths (intensity approach) and active COVID-19 cases (magnitude approach) to measures of healthcare system capacity: hospital beds, healthcare workers and healthcare expenditure. Modelled by the intensity approach with a composite measure for healthcare capacity, the countries experiencing the highest pressure on 25 March 2020 - relative to Italy on 11 March - were Italy, Spain, the Netherlands and France (www.covid-hcpressure.org).
    MeSH term(s) Bed Occupancy ; Betacoronavirus ; COVID-19 ; Coronavirus/isolation & purification ; Coronavirus Infections/diagnosis ; Coronavirus Infections/epidemiology ; Coronavirus Infections/prevention & control ; Delivery of Health Care/organization & administration ; Disease Outbreaks/prevention & control ; Europe/epidemiology ; Health Expenditures/statistics & numerical data ; Health Personnel/statistics & numerical data ; Health Workforce/statistics & numerical data ; Hospital Bed Capacity ; Humans ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/prevention & control ; Pneumonia, Viral/virology ; Population Surveillance/methods ; SARS-CoV-2 ; Severe Acute Respiratory Syndrome/virology ; Surge Capacity
    Keywords covid19
    Language English
    Publishing date 2020-03-26
    Publishing country Sweden
    Document type Journal Article
    ZDB-ID 1338803-4
    ISSN 1560-7917 ; 1025-496X
    ISSN (online) 1560-7917
    ISSN 1025-496X
    DOI 10.2807/1560-7917.ES.2020.25.13.2000323
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Corrigendum to 'Individual decisions to vaccinate one's child or oneself: A discrete choice experiment rejecting free-riding motives' Soc. Sci. Med. 207 (2018) 106-116.

    Verelst, Frederik / Willem, Lander / Kessels, Roselinde / Beutels, Philippe

    Social science & medicine (1982)

    2018  Volume 217, Page(s) 31

    Language English
    Publishing date 2018-10-03
    Publishing country England
    Document type Published Erratum
    ZDB-ID 4766-1
    ISSN 1873-5347 ; 0037-7856 ; 0277-9536
    ISSN (online) 1873-5347
    ISSN 0037-7856 ; 0277-9536
    DOI 10.1016/j.socscimed.2018.09.015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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