1
|
Mohanty S, Hu T, Yang G, Khan TK, Owusu-Edusei K, Sukarom I. Health and economic burden associated with 15-valent pneumococcal conjugate vaccine serotypes in Korea and Hong Kong. Hum Vaccin Immunother 2022; 18:2046433. [PMID: 35420975 PMCID: PMC9196648 DOI: 10.1080/21645515.2022.2046433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Use of pneumococcal conjugate vaccines (PCVs) has greatly reduced the incidence of invasive pneumococcal disease (IPD). V114 (VAXNEUVANCE™, Merck Sharp & Dohme Corp. a subsidiary of Merck & Co. Inc. Kenilworth, NJ, USA) is a 15-valent PCV currently approved in adults in the United States, containing the 13 serotypes in licensed PCV13 and 2 additional serotypes (22F and 33F) which are important contributors to residual pneumococcal disease. This study quantified the health and economic burden of IPD attributable to V114 serotypes in hypothetical birth cohorts from Korea and Hong Kong. A Markov model was used to estimate the case numbers and costs of IPD in unvaccinated birth cohorts over 20 years. The model was applied to 3 scenarios in Korea (pre-PCV7, pre-PCV13, and post-PCV13) and to 2 scenarios in Hong Kong (pre-PCV7 and post-PCV13). For Korea, the model predicted 62, 26, and 8 IPD cases attributable to V114 serotypes in the pre-PCV7, pre-PCV13, and post-PCV13 scenarios, respectively. Costs of V114-type IPD fell from $1.691 million pre-PCV7 to $.212 million post-PCV13. For Hong Kong, the model estimated 62 V114-associated IPD cases in the pre-PCV7 scenario and 46 in the post-PCV13 scenario. Costs attributed to all V114 serotypes were $2.322 million and $1.726 million in the pre-PCV7 and post-PCV13 periods, respectively. Vaccine-type serotypes are predicted to cause continuing morbidity and cost in Korea (19A) and Hong Kong (3 and 19A). New pediatric pneumococcal vaccines must continue to protect against serotypes in licensed vaccines to maintain disease reduction, while extending coverage to non-vaccine serotypes.
Collapse
Affiliation(s)
- Salini Mohanty
- Center for Observational and Real-World Evidence (CORE), Merck & Co., Inc., Kenilworth, NJ, USA
| | - Tianyan Hu
- Center for Observational and Real-World Evidence (CORE), Merck & Co., Inc., Kenilworth, NJ, USA
| | | | - Tsz K Khan
- Global Medical and Scientific Affairs, MSD, Hong Kong, China
| | - Kwame Owusu-Edusei
- Biostatistics & Research Decision Sciences (BARDS), Merck & Co., Inc., Kenilworth, NJ, USA
| | - Isaya Sukarom
- Center for Observational and Real-World Evidence (CORE), MSD Thailand, Bangkok, Thailand
| |
Collapse
|
2
|
Huang J, Mak FY, Wong YY, Ko S, Chong MKC, Wang Z, Hon KL, Wong ELY, Yeoh EK, Wong MCS. Enabling Factors, Barriers, and Perceptions of Pneumococcal Vaccination Strategy Implementation: A Qualitative Study. Vaccines (Basel) 2022; 10:vaccines10071164. [PMID: 35891327 PMCID: PMC9315707 DOI: 10.3390/vaccines10071164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 02/01/2023] Open
Abstract
Invasive pneumococcal disease (IPD) is a leading cause of disability and mortality worldwide, particularly in the elderly population. With the implementation of the Government Vaccination Programme (GVP) and the Vaccination Subsidy Scheme (VSS), enabling factors and barriers in service provider scheme participation and vaccination uptake were examined in 32 interviews with doctors and 16 interviews with vaccine recipients. Interview data were analysed in NVivo 11.0 with reference to the Consolidated Framework for Implementation Research (CFIR) and the REAIM Framework to develop codes and themes. Barriers to pneumococcal vaccination uptake included concerns on vaccine efficacy and poor understanding of the disease and vaccine schemes, whilst service provider participation was hindered by ill-defined parameters for patient eligibility and time, location, and logistical constraints. Enabling factors to improve intervention implementation were involvement of the government and physicians to encourage participation, clarifying eligibility criteria, and improving individual knowledge of IPD and vaccination schemes. As participation rates in the GVP and VSS remains low in Hong Kong, efforts concentrating on health promotion strategies encouraging pneumococcal vaccination amongst the elderly population are recommended.
Collapse
Affiliation(s)
- Junjie Huang
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Fung-Yu Mak
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Yuet-Yan Wong
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Samantha Ko
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Marc K. C. Chong
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Zixin Wang
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Kam-Lun Hon
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Eliza L. Y. Wong
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Eng-Kiong Yeoh
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
| | - Martin C. S. Wong
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong 999077, China; (J.H.); (F.-Y.M.); (Y.-Y.W.); (S.K.); (M.K.C.C.); (Z.W.); (K.-L.H.); (E.L.Y.W.); (E.-K.Y.)
- School of Public Health, Peking Union Medical College, Beijing 100005, China
- School of Public Health, Peking University, Beijing 100191, China
- Correspondence: ; Tel.: +852-2252-8782
| |
Collapse
|
3
|
Yang Y, Zhang T, Wang Y, Ma L, Xie S, Zhou J, Qi W, Wang Q, Dai P, Du Y, Feng L, Wang C, Yang W. Willingness of Caregivers to Have Their Children Vaccinated with Pneumococcal Vaccines in the Context of an Innovative Immunization Strategy - Weifang City, Shandong Province, 2021. China CDC Wkly 2022; 4:421-425. [PMID: 35685692 PMCID: PMC9167618 DOI: 10.46234/ccdcw2022.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/09/2021] [Indexed: 12/02/2022] Open
Abstract
What is already known about this topic? Pneumococcal diseases (PDs) pose a serious health threat to children. Vaccination is the most cost-effective intervention to prevent PDs, but pneumococcal vaccines coverage among children is low in China. What is added by this report? This study investigated the willingness of children's caregivers to have their children vaccinated with pneumococcal vaccines under an innovative policy to offer 1-dose of the 13-valent pneumococcal conjugate vaccines at no charge to families. The research found that 70.51% of caregivers were willing to have their infants receive pneumococcal vaccines and that reducing the cost of vaccines may increase caregivers' willingness. What are the implications for public health practice? This is the first evaluation in China of acceptance of pneumococcal vaccines among children under a 1-dose, cost-free policy. The results provide scientific evidence for updating local and national pneumococcal immunization strategies to promote the use of the pneumococcal vaccine.
Collapse
Affiliation(s)
- Yuan Yang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ting Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yan Wang
- Weifang Medical University, Weifang City, Shandong Province, China
| | - Libing Ma
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guilin Medical University, Guilin City, Guangxi Zhuang Autonomous Region, China
| | - Shuyun Xie
- Zhejiang Center for Disease Control and Prevention, Hangzhou City, Zhejiang Province, China
| | - Jian Zhou
- Weifang Center for Disease Control and Prevention, Weifang City, Shandong Province, China
| | - Weiran Qi
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qing Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Peixi Dai
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yuanze Du
- Weifang Medical University, Weifang City, Shandong Province, China
| | - Luzhao Feng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Chunping Wang
- Weifang Medical University, Weifang City, Shandong Province, China
| | - Weizhong Yang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| |
Collapse
|
4
|
CELLA PAOLA, VOGLINO GIANLUCA, BARBERIS ILARIA, ALAGNA ENRICO, ALESSANDRONI CLAUDIA, CUDA ALESSANDRO, D’ALOISIO FRANCESCO, DALLAGIACOMA GIULIA, DE NITTO SARA, DI GASPARE FRANCESCA, GALLIPOLI ORIANA, GENTILE LEANDRO, KUNDISOV LUCIA, NAVARO MONICA, PROVENZANO SANDRO, SANTANGELO OMARENZO, STEFANIZZI PASQUALE, GIANFREDI VINCENZA. Resources for assessing parents' vaccine hesitancy: a systematic review of the literature. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2020; 61:E340-E373. [PMID: 33150224 PMCID: PMC7595070 DOI: 10.15167/2421-4248/jpmh2020.61.3.1448] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 07/22/2020] [Indexed: 11/17/2022]
Abstract
The concept of Vaccine Hesitancy has begun to appear in the scientific landscape, referring to the reluctance of a growing proportion of people to accept the vaccination offer. A variety of factors were identified as being associated with vaccine hesitancy but there was no universal algorithm and currently there aren’t any established metrics to assess either the presence or impact of vaccine hesitancy. The aim of this study was to systematically review the published questionnaires evaluating parental vaccine hesitancy, to highlight the differences among these surveys and offer a general overview on this matter. This study offers a deeper perspective on the available questionnaires, helping future researches to identify the most suitable one according to their own aim and study setting.
Collapse
Affiliation(s)
- PAOLA CELLA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Medicine and Surgery, University of Parma, Italy
| | - GIANLUCA VOGLINO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, University of Turin, Italy
| | - ILARIA BARBERIS
- Health Science Department, University of Genoa, Italy
- Correspondence: Ilaria Barberis, Health Science Department, University of Genoa, largo Rosanna Benzi 10, Pad. 3 San Martino Hospital, Italy - Tel./Fax +39 010 3538502 - E-mail:
| | - ENRICO ALAGNA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, University of Palermo, Italy
| | - CLAUDIA ALESSANDRONI
- Post Graduate School of Hygiene and Preventive Medicine, University of Rome Tor Vergata, Rome, Italy
| | - ALESSANDRO CUDA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Italy
| | - FRANCESCO D’ALOISIO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Life, Health and Environmental Sciences, University of L’Aquila, Italy
| | - GIULIA DALLAGIACOMA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Italy
| | - SARA DE NITTO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Biomedical Science and Human Oncology, University of Bari Aldo Moro, Italy
| | - FRANCESCA DI GASPARE
- Post Graduate School of Hygiene and Preventive Medicine, University of Rome Tor Vergata, Rome, Italy
| | - ORIANA GALLIPOLI
- Post Graduate School of Hygiene and Preventive Medicine, Department of Life, Health and Environmental Sciences, University of L’Aquila, Italy
| | - LEANDRO GENTILE
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Italy
| | - LUCIA KUNDISOV
- Post Graduate School of Public Health, University of Siena, Italy
| | - MONICA NAVARO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Experimental Medicine, University of Campania “L. Vanvitelli”, Italy
| | - SANDRO PROVENZANO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, University of Palermo, Italy
| | - OMAR ENZO SANTANGELO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, University of Palermo, Italy
| | - PASQUALE STEFANIZZI
- Post Graduate School of Hygiene and Preventive Medicine, Department of Biomedical Science and Human Oncology, University of Bari Aldo Moro, Italy
| | - VINCENZA GIANFREDI
- Post Graduate School of Hygiene and Preventive Medicine, Department of Experimental Medicine, University of Perugia, Italy
- School of Medicine, University Vita-Salute San Raffaele, Milan, Italy
| |
Collapse
|
5
|
Liao Q, Fielding R, Cheung YTD, Lian J, Yuan J, Lam WWT. Effectiveness and Parental Acceptability of Social Networking Interventions for Promoting Seasonal Influenza Vaccination Among Young Children: Randomized Controlled Trial. J Med Internet Res 2020; 22:e16427. [PMID: 32130136 PMCID: PMC7070348 DOI: 10.2196/16427] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/05/2019] [Accepted: 01/26/2020] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Seasonal influenza vaccination (SIV) coverage among young children remains low worldwide. Mobile social networking apps such as WhatsApp Messenger are promising tools for health interventions. OBJECTIVE This was a preliminary study to test the effectiveness and parental acceptability of a social networking intervention that sends weekly vaccination reminders and encourages exchange of SIV-related views and experiences among mothers via WhatsApp discussion groups for promoting childhood SIV. The second objective was to examine the effect of introducing time pressure on mothers' decision making for childhood SIV for vaccination decision making. This was done using countdowns of the recommended vaccination timing. METHODS Mothers of child(ren) aged 6 to 72 months were randomly allocated to control or to one of two social networking intervention groups receiving vaccination reminders with (SNI+TP) or without (SNI-TP) a time pressure component via WhatsApp discussion groups at a ratio of 5:2:2. All participants first completed a baseline assessment. Both the SNI-TP and SNI+TP groups subsequently received weekly vaccination reminders from October to December 2017 and participated in WhatsApp discussions about SIV moderated by a health professional. All participants completed a follow-up assessment from April to May 2018. RESULTS A total of 84.9% (174/205), 71% (57/80), and 75% (60/80) who were allocated to the control, SNI-TP, and SNI+TP groups, respectively, completed the outcome assessment. The social networking intervention significantly promoted mothers' self-efficacy for taking children for SIV (SNI-TP: odds ratio [OR] 2.69 [1.07-6.79]; SNI+TP: OR 2.50 [1.13-5.55]), but did not result in significantly improved children's SIV uptake. Moreover, after adjusting for mothers' working status, introducing additional time pressure reduced the overall SIV uptake in children of working mothers (OR 0.27 [0.10-0.77]) but significantly increased the SIV uptake among children of mothers without a full-time job (OR 6.53 [1.87-22.82]). Most participants' WhatsApp posts were about sharing experience or views (226/434, 52.1%) of which 44.7% (101/226) were categorized as negative, such as their concerns over vaccine safety, side effects and effectiveness. Although participants shared predominantly negative experience or views about SIV at the beginning of the discussion, the moderator was able to encourage the discussion of more positive experience or views and more knowledge and information. Most intervention group participants indicated willingness to receive the same interventions (110/117, 94.0%) and recommend the interventions to other mothers (102/117, 87.2%) in future. CONCLUSIONS Online information support can effectively promote mothers' self-efficacy for taking children for SIV but alone it may not sufficient to address maternal concerns over SIV to achieve a positive vaccination decision. However, the active involvement of health professionals in online discussions can shape positive discussions about vaccination. Time pressure on decision making interacts with maternal work status, facilitating vaccination uptake among mothers who may have more free time, but having the opposite effect among busier working mothers. TRIAL REGISTRATION Hong Kong University Clinical Trials Registry HKUCTR-2250; https://tinyurl.com/vejv276.
Collapse
Affiliation(s)
- Qiuyan Liao
- University of Hong Kong, Hong Kong, China (Hong Kong)
| | | | | | - Jinxiao Lian
- The Hong Kong Polytechnic University, Hong Kong, China (Hong Kong)
| | - Jiehu Yuan
- University of Hong Kong, Hong Kong, China (Hong Kong)
| | | |
Collapse
|
6
|
Wong C, Jiang M, You JHS. Potential Cost-Effectiveness of an Influenza Vaccination Program Offering Microneedle Patch for Vaccine Delivery in Children. PLoS One 2016; 11:e0169030. [PMID: 28006012 PMCID: PMC5179085 DOI: 10.1371/journal.pone.0169030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 12/09/2016] [Indexed: 12/13/2022] Open
Abstract
Objective The influenza vaccine coverage rate of children is low in Hong Kong. Microneedle patches (MNPs) is a technology under development for painless delivery of vaccines. This study aimed to examine the potential clinical outcomes and direct medical costs of an influenza program offering MNP vaccine to children who have declined intramuscular (IM) vaccine in Hong Kong. Methods A decision model was designed to compare potential outcomes between IM vaccine program and a program offering MNP vaccine to those declined IM vaccine (IM/MNP program) in a hypothetical cohort of children over one-year time horizon. The model outcomes included direct medical cost, influenza infection rate, mortality rate, and quality-adjusted life-years (QALYs) loss. Model inputs were retrieved from published literature. Sensitivity analyses were performed to examine the robustness of model results. Results In base-case analysis, IM/MNP program was more costly per child (USD19.13 versus USD13.69; USD1 = HKD7.8) with lower influenza infection rate (98.9 versus 124.8 per 1,000 children), hospitalization rate (0.83 versus 1.05 per 1,000 children) and influenza-related mortality rate (0.00042 versus 0.00052 per 1,000 children) when compared to IM program. The incremental cost per QALY saved (ICER) of IM/MNP program versus IM program was 27,200 USD/QALY. Using gross domestic product (GDP) per capita of Hong Kong (USD40,594) as threshold of willingness-to-pay (WTP) per QALY, one-way sensitivity analysis found ICER of IM/MNP to exceed WTP when duration of illness in outpatient setting was <5.7 days or cost per MNP vaccine was >1.39-time of IM vaccine cost. In 10,000 Monte Carlo simulations, IM/MNP program was the preferred option in 57.28% and 91.68% of the time, using 1x and 3x GDP per capita as WTP threshold, respectively. Conclusion Acceptance of IM/MNP program as the preferred program was subject to the WTP threshold, duration of illness in outpatient settings, and cost of MNP vaccine.
Collapse
Affiliation(s)
- Carlos Wong
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong
| | - Minghuan Jiang
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong
| | - Joyce H. S. You
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong
- * E-mail:
| |
Collapse
|