{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T22:58:16Z","timestamp":1776380296324,"version":"3.51.2"},"reference-count":35,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2023,1,1]],"date-time":"2023-01-01T00:00:00Z","timestamp":1672531200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Education in Saudi Arabia","award":["IFKSURG-2-1289"],"award-info":[{"award-number":["IFKSURG-2-1289"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vaccines"],"abstract":"<jats:p>The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) disease caused a highly problematic situation worldwide. Various vaccines were launched to combat the COVID-19 pandemic. This study aims to investigate the adverse effects of first and second doses of the Sinopharm vaccine among vaccinated medical and dental students and healthcare workers. A well-established questionnaire was distributed online, and 414 medical and dental students and healthcare workers (HCW) comprising 355 females (85.7%) and 59 males (14.3%) participated; all were vaccinated with two doses of Sinopharm. The most common side effect was pain at the injection site after dose one in 253 respondents (61.3%) and after dose two in 161 respondents (38.9%). Other symptoms included general lethargy in 168 (40.6%), myalgia\/body pain in 99 (23.9%), low-grade fever in 93 (22.4%), and headache in 87 (21%) respondents. Common side effects reported after the second dose of the vaccine following pain at the injection site included general lethargy in 21.3% (88), headache in 10.4% (43), myalgia\/body pain in 9.9% (41), and low-grade fever in 6.1% (25) of the respondents. In conclusion, common adverse effects of the Sinopharm vaccine were pain at the injection site, general lethargy, myalgia, body pain, low-grade fever, and headache. These adverse effects were mild in intensity for both doses but slightly more frequent and severe for the first dose than the second dose.<\/jats:p>","DOI":"10.3390\/vaccines11010105","type":"journal-article","created":{"date-parts":[[2023,1,2]],"date-time":"2023-01-02T02:12:48Z","timestamp":1672625568000},"page":"105","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Adverse Effects of Sinopharm COVID-19 Vaccine among Vaccinated Medical Students and Health Care Workers"],"prefix":"10.3390","volume":"11","author":[{"given":"Anusha Sultan","family":"Meo","sequence":"first","affiliation":[{"name":"College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adeeba","family":"Masood","sequence":"additional","affiliation":[{"name":"Army Medical College, National University of Medical Sciences, Rawalpindi 46000, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Usama","family":"Shabbir","sequence":"additional","affiliation":[{"name":"Army Medical College, National University of Medical Sciences, Rawalpindi 46000, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-5015-6897","authenticated-orcid":false,"given":"Hubba","family":"Ali","sequence":"additional","affiliation":[{"name":"Army Medical College, National University of Medical Sciences, Rawalpindi 46000, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zeeshan","family":"Nadeem","sequence":"additional","affiliation":[{"name":"Army Medical College, National University of Medical Sciences, Rawalpindi 46000, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9820-1852","authenticated-orcid":false,"given":"Sultan Ayoub","family":"Meo","sequence":"additional","affiliation":[{"name":"Department of Physiology, College of Medicine, King Saud University, Riyadh 1146A1, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdullah Nasser","family":"Alshahrani","sequence":"additional","affiliation":[{"name":"Department of Physiology, College of Medicine, King Saud University, Riyadh 1146A1, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saad","family":"AlAnazi","sequence":"additional","affiliation":[{"name":"Department of Physiology, College of Medicine, King Saud University, Riyadh 1146A1, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abeer A","family":"Al-Masri","sequence":"additional","affiliation":[{"name":"Department of Physiology, College of Medicine, King Saud University, Riyadh 1146A1, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thamir","family":"Al-Khlaiwi","sequence":"additional","affiliation":[{"name":"Department of Physiology, College of Medicine, King Saud University, Riyadh 1146A1, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2495","DOI":"10.1016\/j.jksus.2020.04.004","article-title":"Biological and epidemiological trends in the prevalence and mortality due to outbreaks of novel coronavirus COVID-19","volume":"32","author":"Meo","year":"2020","journal-title":"J. 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