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Postdengue chronic fatigue syndrome in an adolescent boy
  1. Vijayakumary Thadchanamoorthy1 and
  2. Kavinda Dayasiri2
  1. 1Paediatrics, Faculty of Health Care Science, Eastern University, Sri Lanka, Batticaloa, Sri Lanka
  2. 2Paediatrics, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
  1. Correspondence to Dr Kavinda Dayasiri; kavindadayasiri{at}


Chronic fatigue syndrome (CFS) is often preceded by a viral illness and has recurrent ‘flulike’ 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 weeks 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.

  • musculoskeletal and joint disorders
  • paediatrics

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  • Contributors VT led clinical management of the reported patient, and wrote the manuscript. KD performed literature survey, participated in clinical management, wrote and edited the manuscript. Both authors the approved final version of the manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.