{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T22:40:58Z","timestamp":1773268858382,"version":"3.50.1"},"reference-count":20,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T00:00:00Z","timestamp":1773187200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Susceptibility to hepatitis A virus (HAV) remains high among young adults in Korea, reflecting birth-cohort effects and vaccination history. Because foodborne transmission has contributed to outbreaks, students in food and nutrition or culinary arts represent a relevant target group as future food handlers. We aimed to estimate anti-HAV immunoglobulin G (IgG) seroprevalence, describe pre- to post-intervention changes in knowledge, perceptions and vaccination intention and report two-dose vaccination completion and its correlates.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>From April 2023 to December 2024, we conducted a campus-based hepatitis A prevention program at four universities. Students completed a baseline questionnaire before the session and a post-intervention questionnaire immediately after the education session and same-visit POCT result feedback. Students who were IgG-negative and had no verified prior two-dose vaccination in the national Immunization Registry Information System (IRIS) were referred to public health centers for no-cost vaccination. Two-dose completion was defined as IRIS documentation of a second HAV vaccine dose by the study end date. We modeled anti-HAV IgG positivity using mixed-effects logistic regression with an institution-level random intercept, and series completion (and correlates) using modified Poisson regression with institution-clustered robust standard errors.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Of 692 participants who underwent anti-HAV IgG POCT, 188 (27.2%) were IgG-positive and 504 (72.8%) IgG-negative. Among IgG-negative participants, 37 had documented prior two-dose vaccination and were not vaccine-eligible. The remaining 467 were vaccine-eligible (0 dose\n                      <jats:italic>n<\/jats:italic>\n                      \u202f=\u202f435, 1 dose\n                      <jats:italic>n<\/jats:italic>\n                      \u202f=\u202f32). Overall, 354\/467 (75.8%) completed the two-dose series. Baseline intention was strongly associated with series completion (aRR 1.55; 95% CI, 1.39\u20131.72). Among those initially no\/undecided (\n                      <jats:italic>n<\/jats:italic>\n                      \u202f=\u202f114), endorsing vaccine distrust was associated with higher completion (aRR 1.46; 95% CI, 1.09\u20131.98).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>In a cohort of future food handlers with a susceptibility gap, a campus-based program integrating standardized education with same-visit anti-HAV IgG testing and vaccination record verification achieved high two-dose completion among those without evidence of protection. These findings inform targeted young-adult hepatitis A prevention strategies by using on-site triage to focus counseling and referral on susceptible individuals and reduce reliance on off-site testing and return visits. Comparative studies are needed to assess the incremental value and cost-effectiveness of on-site testing and serostatus feedback.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpubh.2026.1740378","type":"journal-article","created":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T06:53:06Z","timestamp":1773211986000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Hepatitis A serostatus and vaccination outcomes after on-campus education and point-of-care antibody testing"],"prefix":"10.3389","volume":"14","author":[{"given":"Jun Hwi","family":"Cho","sequence":"first","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jin","family":"Kim","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ran","family":"Lee","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]},{"name":"Department of Public Health, Graduate School, Chonnam National University","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"So Hyun","family":"Bae","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A Ram","family":"Park","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jang Gwon","family":"Yoon","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ji In","family":"Seo","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hye Rin","family":"Na","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kyung-Hwa","family":"Park","sequence":"additional","affiliation":[{"name":"Gwangju Center for Infectious Diseases Control and Prevention","place":["Gwangju, Republic of Korea"]},{"name":"Department of Infectious Diseases, Chonnam National University Medical School","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"So Yeon","family":"Ryu","sequence":"additional","affiliation":[{"name":"Department of Preventive Medicine, Chosun University Medical School","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seong Eun","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases, Chonnam National University Medical School","place":["Gwangju, Republic of Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2026,3,11]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"6653","DOI":"10.1016\/j.vaccine.2010.08.037","article-title":"Hepatitis A virus seroprevalence by age and world region, 1990 and 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