{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T14:26:56Z","timestamp":1774362416320,"version":"3.50.1"},"reference-count":39,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2021,7,25]],"date-time":"2021-07-25T00:00:00Z","timestamp":1627171200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010653","name":"Masaryk University","doi-asserted-by":"publisher","award":["MUNI\/IGA\/1543\/2020"],"award-info":[{"award-number":["MUNI\/IGA\/1543\/2020"]}],"id":[{"id":"10.13039\/501100010653","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010653","name":"Masaryk University","doi-asserted-by":"publisher","award":["MUNI\/A\/1608\/2020"],"award-info":[{"award-number":["MUNI\/A\/1608\/2020"]}],"id":[{"id":"10.13039\/501100010653","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Background: Coronavirus disease (COVID-19) vaccine-related side effects have a determinant role in the public decision regarding vaccination. Therefore, this study has been designed to actively monitor the safety and effectiveness of COVID-19 vaccines globally. Methods: A multi-country, three-phase study including a cross-sectional survey to test for the short-term side effects of COVID-19 vaccines among target population groups. In the second phase, we will monitor the booster doses\u2019 side effects, while in the third phase, the long-term safety and effectiveness will be investigated. A validated, self-administered questionnaire will be used to collect data from the target population; Results: The study protocol has been registered at ClinicalTrials.gov, with the identifier NCT04834869. Conclusions: CoVaST is the first independent study aiming to monitor the side effects of COVID-19 vaccines following booster doses, and the long-term safety and effectiveness of said vaccines.<\/jats:p>","DOI":"10.3390\/ijerph18157859","type":"journal-article","created":{"date-parts":[[2021,7,25]],"date-time":"2021-07-25T22:06:21Z","timestamp":1627250781000},"page":"7859","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":51,"title":["COVID-19 Vaccines Safety Tracking (CoVaST): Protocol of a Multi-Center Prospective Cohort Study for Active Surveillance of COVID-19 Vaccines\u2019 Side Effects"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5918-8966","authenticated-orcid":false,"given":"Abanoub","family":"Riad","sequence":"first","affiliation":[{"name":"Czech National Centre for Evidence-Based Healthcare and Knowledge Translation (Cochrane Czech Republic, Czech EBHC: JBI Centre of Excellence, Masaryk University GRADE Centre), Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"},{"name":"Department of Public Health, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"}]},{"given":"Holger","family":"Sch\u00fcnemann","sequence":"additional","affiliation":[{"name":"Department of Health Research Methods, Evidence, and Impact, McMaster University Health Sciences Centre, Room 2C16, 1280 Main Street West, Hamilton, ON L8N 4K1, Canada"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9174-6435","authenticated-orcid":false,"given":"Sameh","family":"Attia","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Justus-Liebig-University, Klinikstrasse 33, 35392 Giessen, Germany"}]},{"given":"Tina","family":"Peri\u010di\u0107","sequence":"additional","affiliation":[{"name":"Department of Research in Biomedicine and Health, University of Split School of Medicine, \u0160oltanska 2, 21000 Split, Croatia"}]},{"given":"Marija","family":"\u017duljevi\u0107","sequence":"additional","affiliation":[{"name":"Department of Medical Humanities, University of Split School of Medicine, \u0160oltanska 2, 21000 Split, Croatia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4487-7045","authenticated-orcid":false,"given":"Mikk","family":"J\u00fcrisson","sequence":"additional","affiliation":[{"name":"Department of Family Medicine and Public Health, University of Tartu, Ravila 19, 50411 Tartu, Estonia"}]},{"given":"Ruth","family":"Kalda","sequence":"additional","affiliation":[{"name":"Department of Family Medicine and Public Health, University of Tartu, Ravila 19, 50411 Tartu, Estonia"}]},{"given":"Katrin","family":"Lang","sequence":"additional","affiliation":[{"name":"Department of Family Medicine and Public Health, University of Tartu, Ravila 19, 50411 Tartu, Estonia"}]},{"given":"Sudhakar","family":"Morankar","sequence":"additional","affiliation":[{"name":"Faculty of Public Health, Institute of Health, Jimma University, Aba Jifar 1 Street, 378 Jimma, Ethiopia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0281-5564","authenticated-orcid":false,"given":"Elias","family":"Yesuf","sequence":"additional","affiliation":[{"name":"Faculty of Public Health, Institute of Health, Jimma University, Aba Jifar 1 Street, 378 Jimma, Ethiopia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4294-757X","authenticated-orcid":false,"given":"Mohamed","family":"Mekhemar","sequence":"additional","affiliation":[{"name":"Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Kiel University, Arnold-Heller-Str. 3, Haus B, 24105 Kiel, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1747-0060","authenticated-orcid":false,"given":"Anthony","family":"Danso-Appiah","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Disease Control, School of Public Health, University of Ghana, Accra LG 25, Ghana"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6829-0823","authenticated-orcid":false,"given":"Ahmad","family":"Sofi-Mahmudi","sequence":"additional","affiliation":[{"name":"Cochrane Iran Associate Centre, National Institute for Medical Research Development, Tehran 16846, Iran"}]},{"given":"Giordano","family":"P\u00e9rez-Gaxiola","sequence":"additional","affiliation":[{"name":"Department of Evidence Based Medicine, Sinaloa Pediatric Hospital, Cochrane Mexico, Calle Constituci\u00f3n 530, Jorge Almada, 80200 Culiac\u00e1n, Mexico"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0022-8382","authenticated-orcid":false,"given":"Arkadiusz","family":"Dziedzic","sequence":"additional","affiliation":[{"name":"Department of Conservative Dentistry with Endodontics, Medical University of Silesia, 40-055 Katowice, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3050-4264","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Ap\u00f3stolo","sequence":"additional","affiliation":[{"name":"Health Sciences Research Unit: Nursing, Portugal Centre for Evidence-Based Practice: JBI Centre of Excellence, Nursing School of Coimbra, 3004-011 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1425-885X","authenticated-orcid":false,"given":"Daniela","family":"Cardoso","sequence":"additional","affiliation":[{"name":"Health Sciences Research Unit: Nursing, Portugal Centre for Evidence-Based Practice: JBI Centre of Excellence, Nursing School of Coimbra, 3004-011 Coimbra, Portugal"}]},{"given":"Janja","family":"Marc","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy, University of Ljubljana, A\u0161ker\u010deva Cesta 7, 1000 Ljubljana, Slovenia"},{"name":"Institute of Clinical Chemistry and Biochemistry, University Medical Centre Ljubljana, Zalo\u0161ka cesta 2, 1000 Ljubljana, Slovenia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9061-4628","authenticated-orcid":false,"given":"Mayte","family":"Moreno-Casbas","sequence":"additional","affiliation":[{"name":"Nursing and Healthcare Research Unit (Invest\u00e9n-isciii), Instituto de Salud Carlos III, 28029 Madrid, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1273-4779","authenticated-orcid":false,"given":"Charles","family":"Wiysonge","sequence":"additional","affiliation":[{"name":"Cochrane South Africa, South African Medical Research Council, Cape Town 7501, South Africa"}]},{"given":"Amir","family":"Qaseem","sequence":"additional","affiliation":[{"name":"American College of Physicians, 190 N Independence Mall W, Philadelphia, PA 19106, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5012-5977","authenticated-orcid":false,"given":"Anna","family":"Gryschek","sequence":"additional","affiliation":[{"name":"Department of Nursing in Collective Health, School of Nursing, University of S\u00e3o Paulo, S\u00e3o Paulo 419, Brazil"}]},{"given":"Ivana","family":"Tadi\u0107","sequence":"additional","affiliation":[{"name":"Department of Social Pharmacy and Pharmaceutical Legislation, Faculty of Pharmacy, University of Belgrade, 11221 Belgrade, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1691-8428","authenticated-orcid":false,"given":"Salman","family":"Hussain","sequence":"additional","affiliation":[{"name":"Czech National Centre for Evidence-Based Healthcare and Knowledge Translation (Cochrane Czech Republic, Czech EBHC: JBI Centre of Excellence, Masaryk University GRADE Centre), Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"}]},{"given":"Mohammed","family":"Khan","sequence":"additional","affiliation":[{"name":"School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India"}]},{"given":"Jitka","family":"Klugarova","sequence":"additional","affiliation":[{"name":"Czech National Centre for Evidence-Based Healthcare and Knowledge Translation (Cochrane Czech Republic, Czech EBHC: JBI Centre of Excellence, Masaryk University GRADE Centre), Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"},{"name":"Department of Public Health, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"},{"name":"Institute of Health Information and Statistics of the Czech Republic, Palack\u00e9ho n\u00e1m\u011bst\u00ed 375\/4, 128 01 Praha 2, Czech Republic"},{"name":"Department of Nursing and Midwifery, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1305-6455","authenticated-orcid":false,"given":"Andrea","family":"Pokorna","sequence":"additional","affiliation":[{"name":"Czech National Centre for Evidence-Based Healthcare and Knowledge Translation (Cochrane Czech Republic, Czech EBHC: JBI Centre of Excellence, Masaryk University GRADE Centre), Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"},{"name":"Institute of Health Information and Statistics of the Czech Republic, Palack\u00e9ho n\u00e1m\u011bst\u00ed 375\/4, 128 01 Praha 2, Czech Republic"},{"name":"Department of Nursing and Midwifery, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9243-6391","authenticated-orcid":false,"given":"Michal","family":"Ko\u0161\u010d\u00edk","sequence":"additional","affiliation":[{"name":"Department of Public Health, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"},{"name":"Czech Clinical Research Infrastructure Network, Department of Pharmacology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2804-7295","authenticated-orcid":false,"given":"Miloslav","family":"Klugar","sequence":"additional","affiliation":[{"name":"Czech National Centre for Evidence-Based Healthcare and Knowledge Translation (Cochrane Czech Republic, Czech EBHC: JBI Centre of Excellence, Masaryk University GRADE Centre), Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"},{"name":"Department of Public Health, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic"},{"name":"Institute of Health Information and Statistics of the Czech Republic, Palack\u00e9ho n\u00e1m\u011bst\u00ed 375\/4, 128 01 Praha 2, Czech Republic"},{"name":"Department of Nursing and Midwifery, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,25]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (WHO) (2021, May 07). COVID-19 Vaccine Country Readiness and Delivery. COVAX. Available online: https:\/\/www.who.int\/initiatives\/act-accelerator\/covax\/covid-19-vaccine-country-readiness-and-delivery."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Attia, S., and Howaldt, H.-P. (2021). Impact of COVID-19 on the Dental Community: Part I before Vaccine (BV). J. Clin. Med., 10.","DOI":"10.3390\/jcm10020288"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"4176","DOI":"10.1016\/j.vaccine.2015.04.038","article-title":"Diagnosing the determinants of vaccine hesitancy in specific subgroups: The Guide to Tailoring Immunization Programmes (TIP)","volume":"33","author":"Butler","year":"2015","journal-title":"Vaccine"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"325","DOI":"10.1007\/s10654-020-00634-3","article-title":"Vaccine confidence in the time of COVID-19","volume":"35","author":"Harrison","year":"2020","journal-title":"Eur. J. Epidemiol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"775","DOI":"10.1007\/s10654-020-00671-y","article-title":"Vaccine hesitancy: The next challenge in the fight against COVID-19","volume":"35","author":"Dror","year":"2020","journal-title":"Eur. J. Epidemiol."},{"key":"ref_6","unstructured":"World Health Organization (WHO) (2021, May 07). Ten Threats to Global Health in 2019. Newsroom. Available online: https:\/\/www.who.int\/news-room\/spotlight\/ten-threats-to-global-health-in-2019."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2494","DOI":"10.1016\/j.vaccine.2019.03.041","article-title":"Assessing vaccine hesitancy in the UK population using a generalized vaccine hesitancy survey instrument","volume":"37","author":"Luyten","year":"2019","journal-title":"Vaccine"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"964","DOI":"10.7326\/M20-3569","article-title":"Attitudes Toward a Potential SARS-CoV-2 Vaccine: A Survey of U.S. Adults","volume":"173","author":"Fisher","year":"2020","journal-title":"Ann. Intern. Med."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"4180","DOI":"10.1016\/j.vaccine.2015.04.040","article-title":"Strategies for addressing vaccine hesitancy-A systematic review","volume":"33","author":"Jarrett","year":"2015","journal-title":"Vaccine"},{"key":"ref_10","unstructured":"Strategic Advisory Group of Experts on Immunization (SAGE) (2021, March 14). Vaccine Hesitancy Survey Questions Related to SAGE Vaccine Hesitancy Matrix. Available online: https:\/\/www.who.int\/immunization\/programmes_systems\/Survey_Questions_Hesitancy.pdf."},{"key":"ref_11","unstructured":"Greenberg, J., Dub\u00e9, E., and Driedger, M. (2017). Vaccine Hesitancy: In Search of the Risk Communication Comfort Zone. PLoS Curr., 9."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Dinga, J.N., Sinda, L.K., and Titanji, V.P.K. (2021). Assessment of vaccine hesitancy to a covid-19 vaccine in cameroonian adults and its global implication. Vaccines, 9.","DOI":"10.3390\/vaccines9020175"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.puhe.2019.10.027","article-title":"A meta-synthesis study of the key elements involved in childhood vaccine hesitancy","volume":"180","author":"Ghirotto","year":"2020","journal-title":"Public Health"},{"key":"ref_14","unstructured":"(2021, March 24). Six Ways to Better Understand COVID-19 Vaccine Hesitancy by Surgo Ventures Medium. Available online: https:\/\/surgoventures.medium.com\/six-ways-to-better-understand-covid-19-vaccine-hesitancy-3689dfd65b86."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"n774","DOI":"10.1136\/bmj.n774","article-title":"Covid-19: AstraZeneca vaccine is not linked to increased risk of blood clots, finds European Medicine Agency","volume":"372","author":"Mahase","year":"2021","journal-title":"BMJ"},{"key":"ref_16","unstructured":"McEvoy, J. (2021, May 19). European Healthcare Workers Are Refusing AstraZeneca Vaccine Over Efficacy Concerns. Forbes. Available online: https:\/\/www.forbes.com\/sites\/jemimamcevoy\/2021\/02\/21\/european-healthcare-workers-are-refusing-astrazeneca-vaccine-over-efficacy-concerns\/?sh=547867806520."},{"key":"ref_17","unstructured":"European Medicines Agency (EMA) (2021, March 20). COVID-19 Vaccine AstraZeneca: Benefits Still Outweigh the Risks Despite Possible Link to Rare Blood Clots with Low Blood Platelets, Available online: https:\/\/www.ema.europa.eu\/en\/news\/covid-19-vaccine-astrazeneca-benefits-still-outweigh-risks-despite-possible-link-rare-blood-clots."},{"key":"ref_18","unstructured":"Institute for Health Metrics and Evaluation (IHME) (2021, May 18). COVID-19 model FAQs. COVID-19 Resources. Available online: http:\/\/www.healthdata.org\/covid\/faqs."},{"key":"ref_19","unstructured":"Pfizer (2021, May 18). Pfizer and BioNTech Initiate a Study as Part of Broad Development Plan to Evaluate COVID-19 Booster and New Vaccine Variants. Available online: https:\/\/www.pfizer.com\/news\/press-release\/press-release-detail\/pfizer-and-biontech-initiate-study-part-broad-development."},{"key":"ref_20","unstructured":"(2021, May 20). World-First COVID-19 Vaccine Booster Study Launches in UK-GOV.UK, Available online: https:\/\/www.gov.uk\/government\/news\/world-first-covid-19-vaccine-booster-study-launches-in-uk."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Riad, A., Pokorn\u00e1, A., Attia, S., Klugarov\u00e1, J., Ko\u0161\u010d\u00edk, M., and Klugar, M. (2021). Prevalence of COVID-19 Vaccine Side Effects among Healthcare Workers in the Czech Republic. J. Clin. Med., 10.","DOI":"10.3390\/jcm10071428"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Riad, A., Sa\u011f\u0131ro\u011flu, D., \u00dcst\u00fcn, B., Attia, S., and Klugar, M. (2021). Prevalence and Risk Factors of CoronaVac Side Effects: An Independent Cross-Sectional Study Among Healthcare Workers in Turkey. SSRN Electron. J.","DOI":"10.2139\/ssrn.3820571"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1389","DOI":"10.2147\/IJGM.S310497","article-title":"Minor to Moderate Side Effects of Pfizer-BioNTech COVID-19 Vaccine Among Saudi Residents: A Retrospective Cross-Sectional Study","volume":"14","author":"Harakeh","year":"2021","journal-title":"Int. J. Gen. Med."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Mathioudakis, A.G., Ghrew, M., Ustianowski, A., Ahmad, S., Borrow, R., Papavasileiou, L.P., Petrakis, D., and Bakerly, N.D. (2021). Self-reported real-world safety and reactogenicity of covid-19 vaccines: A vaccine recipient survey. Life, 11.","DOI":"10.1101\/2021.02.26.21252096"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Menni, C., Klaser, K., May, A., Polidori, L., Capdevila, J., Louca, P., Sudre, C.H., Nguyen, L.H., Drew, D.A., and Merino, J. (2021). Vaccine side-effects and SARS-CoV-2 infection after vaccination in users of the COVID Symptom Study app in the UK: A prospective observational study. Lancet Infect. Dis.","DOI":"10.1016\/S1473-3099(21)00224-3"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"107098","DOI":"10.1016\/j.dib.2021.107098","article-title":"Survey Data of COVID-19 Vaccine Side Effects among Hospital Staff in a National Referral Hospital in Indonesia","volume":"36","author":"Djanas","year":"2021","journal-title":"Data Br."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Kadali, R.A.K., Janagama, R., Peruru, S., Gajula, V., Madathala, R.R., Chennaiahgari, N., and Malayala, S.V. (2021). Adverse effects of COVID-19 mRNA-1273 vaccine: A randomized, cross-sectional study on healthcare workers with detailed self-reported symptoms. J. Med. Virol., 1\u201310.","DOI":"10.1002\/jmv.26996"},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Pagotto, V., Ferloni, A., Soriano, M.M., Diaz, M., Braguinsky, N., Asprea, V., Vidal, G.G., Silveira, M.G., Zingoni, P., and Aliperti, V. (2021). Active Surveillance of the SPUTNIK V vaccine in health workers. medRxiv.","DOI":"10.1101\/2021.02.03.21251071"},{"key":"ref_29","unstructured":"Centers for Disease Control and Prevention (CDC) (2021, May 19). Population Survey or Descriptive Study. StatCalc User Guide, Available online: https:\/\/www.cdc.gov\/epiinfo\/user-guide\/statcalc\/samplesize.html."},{"key":"ref_30","unstructured":"Institute of Health Information and Statistics of the Czech Republic (UZIS) (2018). Health Yearbook of the Czech Republic 2017, UZIS Publications. Available online: https:\/\/www.uzis.cz\/index-en.php?pg=record&id=8166."},{"key":"ref_31","unstructured":"World Health Organization (WHO) (2020, December 25). Process of Translation and Adaptation of Instruments. Available online: https:\/\/www.who.int\/substance_abuse\/research_tools\/translation\/en\/."},{"key":"ref_32","unstructured":"SPSS Inc. (2021, March 14). IBM SPSS Statistics 27. Available online: https:\/\/www.ibm.com\/support\/pages\/node\/3006603."},{"key":"ref_33","unstructured":"Klugar, M., and Riad, A. (2021, May 09). COVID-19 Vaccines Safety Tracking (CoVaST). ClinicalTrials.gov, Available online: https:\/\/clinicaltrials.gov\/ct2\/show\/NCT04834869."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"581","DOI":"10.1007\/s40264-014-0194-3","article-title":"A comparison of active adverse event surveillance systems worldwide","volume":"37","author":"Huang","year":"2014","journal-title":"Drug Saf."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"567","DOI":"10.1016\/S0140-6736(95)90471-9","article-title":"A new method for active surveillance of adverse events from diphtheria\/tetanus\/pertussis and measles\/mumps\/rubella vaccines","volume":"345","author":"Farrington","year":"1995","journal-title":"Lancet"},{"key":"ref_36","unstructured":"Medicines and Healthcare products Regulatory Agency (MHRA) (2021, May 09). Report of the Commission on Human Medicines Expert Working Group on COVID-19 Vaccine Safety Surveillance. Vigilance, Safety Alerts and Guidance, Available online: https:\/\/www.gov.uk\/government\/publications\/report-of-the-commission-on-human-medicines-expert-working-group-on-covid-19-vaccine-safety-surveillance\/report-of-the-commission-on-human-medicines-expert-working-group-on-covid-19-vaccine-safety-surveillance."},{"key":"ref_37","unstructured":"DataLab (2021, May 09). OpenSAFELY. University of Oxford for the The DataLab 2021. Available online: https:\/\/www.opensafely.org\/."},{"key":"ref_38","unstructured":"Centres for Diseases Control and Prevention (CDC) (2021, March 07). REACTIONS and Adverse Events of the Pfizer-BioNTech COVID-19 Vaccine, Available online: https:\/\/www.cdc.gov\/vaccines\/covid-19\/info-by-product\/pfizer\/reactogenicity.html."},{"key":"ref_39","unstructured":"Centres for Diseases Control and Prevention (CDC) (2021, April 02). Local Reactions, Systemic Reactions, Adverse Events, and Serious Adverse Events: Moderna COVID-19 Vaccine, Available online: https:\/\/www.cdc.gov\/vaccines\/covid-19\/info-by-product\/moderna\/reactogenicity.html."}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/18\/15\/7859\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:34:36Z","timestamp":1760164476000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/18\/15\/7859"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,7,25]]},"references-count":39,"journal-issue":{"issue":"15","published-online":{"date-parts":[[2021,8]]}},"alternative-id":["ijerph18157859"],"URL":"https:\/\/doi.org\/10.3390\/ijerph18157859","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,7,25]]}}}