{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T11:51:39Z","timestamp":1783338699349,"version":"3.54.6"},"reference-count":48,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,9,14]],"date-time":"2022-09-14T00:00:00Z","timestamp":1663113600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004853","name":"Chinese University of Hong Kong","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004853","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Amid the current COVID-19 pandemic, there is an urgent need for both vaccination and revaccination (\u201cboosting\u201d). This study aims to identify factors associated with the intention to receive a booster dose of the coronavirus (COVID-19) vaccine among individuals vaccinated with two doses and characterize their profiles in Hong Kong, a city with a low COVID-19 incidence in the initial epidemic waves. Among the unvaccinated, vaccination intention is also explored and their profiles are investigated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>From December 2021 - January 2022, an online survey was employed to recruit 856 Hong Kong residents aged 18 years or over from an established population-based cohort. Latent class analysis and multivariate logistic regression modeling approaches were used to characterize boosting intentions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 638 (74.5%) vaccinated among 856 eligible subjects, 42.2% intended to receive the booster dose. Four distinct profiles emerged with believers having the highest intention, followed by apathetics, fence-sitters and skeptics. Believers were older and more likely to have been vaccinated against influenza. Older age, smoking, experiencing no adverse effects from a previous COVID-19 vaccination, greater confidence in vaccines and collective responsibility, and fewer barriers in accessing vaccination services were associated with higher intentions to receive the booster dose. Of 218 unvaccinated, most were fence-sitters followed by apathetics, skeptics, and believers.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study foretells the booster intended uptake lagging initial vaccination across different age groups and can help refine the current or future booster vaccination campaign. Given the fourth COVID-19 vaccine dose may be offered to all adults, strategies for improving boosting uptake include policies targeting young adults, individuals who experienced adverse effects from previous doses, fence-sitters, apathetics, and the general public with low trust in the health authorities.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fpubh.2022.935243","type":"journal-article","created":{"date-parts":[[2022,9,14]],"date-time":"2022-09-14T09:29:46Z","timestamp":1663147786000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":9,"title":["The way forward to achieve high COVID-19 vaccination and revaccination coverage in a city amid a period of tranquility"],"prefix":"10.3389","volume":"10","author":[{"given":"Kin On","family":"Kwok","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kin Kit","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cyrus Lap Kwan","family":"Leung","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arthur","family":"Tang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emily Ying Yang","family":"Chan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Margaret Ting Fong","family":"Tsoi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wan In","family":"Wei","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edward B.","family":"McNeil","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samuel Yeung Shan","family":"Wong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2022,9,14]]},"reference":[{"key":"B1","unstructured":"Enhancing Response to Omicron SARS-CoV-2 Variant [Internet]"},{"key":"B2","doi-asserted-by":"publisher","first-page":"1063","DOI":"10.1101\/2022.01.07.22268919","article-title":"Effectiveness of mRNA-1273 against SARS-CoV-2 omicron and delta variants [Internet]","volume":"28","author":"Tseng","year":"2022","journal-title":"BioRxiv."},{"key":"B3","doi-asserted-by":"crossref","DOI":"10.1101\/2021.12.13.21267668","article-title":"Neutralization of SARS-CoV-2 Omicron variant by sera from BNT162b2 or Coronavac vaccine recipients","volume-title":"Clin Infect Dis","author":"Lu","year":"2021"},{"key":"B4","article-title":"Effectiveness of COVID-19 vaccines against Omicron or delta infection [Internet]","volume-title":"BioRxiv.","author":"Buchan","year":"2022"},{"key":"B5","doi-asserted-by":"publisher","first-page":"e26645","DOI":"10.2196\/26645","article-title":"Evolving epidemiological characteristics of COVID-19 in Hong Kong from january to august 2020: retrospective study","volume":"23","author":"Kwok","year":"2021","journal-title":"J Med Internet Res."},{"key":"B6","unstructured":""},{"key":"B7","unstructured":"2020"},{"key":"B8","doi-asserted-by":"crossref","DOI":"10.1038\/d41586-021-01545-3","article-title":"China is vaccinating a staggering 20 million people a day","volume-title":"Nature. 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