{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T07:17:24Z","timestamp":1782371844420,"version":"3.54.5"},"reference-count":23,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2020,12,22]],"date-time":"2020-12-22T00:00:00Z","timestamp":1608595200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,1,29]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Primary Epstein\u2013Barr virus (EBV) infection presents typically with features of infectious mononucleosis (IM) but it may present with atypical symptoms. We aim to evaluate the epidemiological, clinical and laboratory characteristics of primary EBV infection in children in western Saudi Arabia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective analysis of the electronic data of all children who were admitted to the hospital and were tested for EBV-viral capsid antigen (VCA) IgM in the period from 1 January 2018 to 31 December 2019. All data of the children with positive EBV-VCA IgM were collected. Patients were divided into two groups; IM and the non-typical presentations groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Fort-two patients had positive EBV-VCA IgM; 71% had IM and 29% had non-typical presentations. IM was more common in early childhood (46.7%). The non-typical presentations were more in infants below 1\u2009year (50%). Adolescents were less affected (6.7% and 16.7%, respectively). Time to diagnose EBV in the non-typical presentations group was longer than IM group; [3.4 (3.2\u20134.6) vs. 4.7 (4.1\u20135.5), p\u2009=\u20090.039]. The total leucocytes count was higher in the IM syndrome group compared to the non-typical presentation group [11 (10.3\u201317.7) vs. 5.5 (4.5\u20136.4), p\u2009&amp;lt;\u20090.0001].<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Primary EBV infection in healthy children in Saudi Arabia occurs more frequently in the younger age groups. IM syndrome occurs more frequently in early childhood. The non-typical presentation occurs more frequently in infants. While adolescents are less commonly affected by primary EBV.<\/jats:p><\/jats:sec>","DOI":"10.1093\/tropej\/fmaa121","type":"journal-article","created":{"date-parts":[[2020,12,1]],"date-time":"2020-12-01T04:17:34Z","timestamp":1606796254000},"source":"Crossref","is-referenced-by-count":8,"title":["Primary Epstein\u2013Barr Virus Infection in Healthy Children in Saudi Arabia: A Single Hospital-Based Study"],"prefix":"10.1093","volume":"67","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6359-5572","authenticated-orcid":false,"given":"Ahmed","family":"Zaki","sequence":"first","affiliation":[{"name":"Faculty of Medicine, Mansoura University, Mansoura, Egypt"},{"name":"Department of Pediatrics, Al-Jedaani Hospital, Jeddah, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2020,12,22]]},"reference":[{"key":"2021031111255041000_fmaa121-B1","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1016\/j.anpedi.2018.09.003","article-title":"Epstein-Barr virus primary infection in healthy children","volume":"90","author":"Garc\u00eda-Peris","year":"2019","journal-title":"An Pediatr (Barc)"},{"key":"2021031111255041000_fmaa121-B2","volume-title":"Feigin and Cherry\u2019s Textbook of Pediatric Infectious diseases","author":"Leach","year":"2014","edition":"7th edn"},{"key":"2021031111255041000_fmaa121-B3","doi-asserted-by":"crossref","first-page":"45","DOI":"10.7326\/0003-4819-118-1-199301010-00009","article-title":"Epstein\u2013Barr virus infections: biology, pathogenesis, and management","volume":"118","author":"Straus","year":"1993","journal-title":"Ann Intern Med"},{"key":"2021031111255041000_fmaa121-B4","doi-asserted-by":"crossref","first-page":"1003","DOI":"10.1542\/peds.75.6.1003","article-title":"Epstein\u2013Barr virus infectious mononucleosis in children. 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