{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T00:02:29Z","timestamp":1756339349844,"version":"3.44.0"},"reference-count":23,"publisher":"BMJ","issue":"6","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2021,5,26]]},"published-print":{"date-parts":[[2021,6]]},"abstract":"<jats:p>Chronic fatigue syndrome (CFS) is often preceded by a viral illness and has recurrent \u2018flulike\u2019 symptoms which include a wide spectrum of musculoskeletal and neurological clinical features. The condition is also known as myalgic encephalomyelitis and systemic exertional intolerance syndrome. CFS has been reported following dengue among adult patients. We report the case of an 11-year-old boy who developed CFS following recovery of dengue haemorrhagic fever (DHF). The reported child was initially managed as for DHF and was clinically asymptomatic on post-discharge day 3. He was re-admitted after 3\u2009weeks with severe joint pains, myalgia and unbearable headache. As his symptoms persisted, he was investigated in-depth. All investigations were normal except mild elevation of liver functions. The diagnosis of CFS secondary to DHF was made by exclusion of differential diagnosis. At 1-year follow-up, patient continues to have symptoms after treatment with physiotherapy and nutrition counselling.<\/jats:p>","DOI":"10.1136\/bcr-2020-238605","type":"journal-article","created":{"date-parts":[[2021,6,7]],"date-time":"2021-06-07T12:35:34Z","timestamp":1623069334000},"page":"e238605","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Postdengue chronic fatigue syndrome in an adolescent boy"],"prefix":"10.1136","volume":"14","author":[{"given":"Vijayakumary","family":"Thadchanamoorthy","sequence":"first","affiliation":[{"name":"Paediatrics, Faculty of Health Care Science, Eastern University, Sri Lanka, Batticaloa, Sri Lanka"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kavinda","family":"Dayasiri","sequence":"additional","affiliation":[{"name":"Paediatrics, Oxford University Hospitals NHS Foundation Trust, Oxford, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2021,6,7]]},"reference":[{"key":"2025082623553567000_14.6.e238605.1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pntd.0003632"},{"key":"2025082623553567000_14.6.e238605.2","doi-asserted-by":"crossref","first-page":"314","DOI":"10.5582\/irdr.2017.01071","article-title":"Expanded dengue syndrome in secondary dengue infection: a case of biopsy proven rhabdomyolysis induced acute kidney injury with intracranial and intraorbital bleeds","volume":"6","author":"Tansir","year":"2017","journal-title":"Intractable Rare Dis Res"},{"key":"2025082623553567000_14.6.e238605.3","doi-asserted-by":"publisher","DOI":"10.1093\/cid\/cir451"},{"key":"2025082623553567000_14.6.e238605.4","doi-asserted-by":"crossref","first-page":"1022","DOI":"10.4103\/jfmpc.jfmpc_12_19","article-title":"Clinicolaboratory profile of expanded dengue syndrome - Our experience in a teaching hospital","volume":"8","author":"Mohanty","year":"2019","journal-title":"J Family Med Prim Care"},{"key":"2025082623553567000_14.6.e238605.5","doi-asserted-by":"crossref","first-page":"S83","DOI":"10.2149\/tmh.2011-S10","article-title":"Clinical manifestations and management of Dengue\/DHF\/DSS","volume":"39","author":"Kalayanarooj","year":"2011","journal-title":"Trop Med Health"},{"key":"2025082623553567000_14.6.e238605.6","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcv.2006.10.011"},{"key":"2025082623553567000_14.6.e238605.7","first-page":"625","article-title":"[Persistence of dengue symptoms in patients in Uberaba, Minas Gerais State, Brazil]","volume":"26","author":"Teixeira","year":"2010","journal-title":"Cad Saude Publica"},{"key":"2025082623553567000_14.6.e238605.8","doi-asserted-by":"publisher","DOI":"10.1016\/j.humimm.2015.09.026"},{"key":"2025082623553567000_14.6.e238605.9","unstructured":"Committee on the Diagnostic Criteria for Myalgic Encephalomyelitis\/Chronic Fatigue Syndrome; Board on the Health of Select Populations; Institute of Medicine . 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