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On the lookout for post-streptococcal complications in the UK
  1. Justin Healy1,
  2. Katherine Longbottom2,
  3. Alison Kent3,
  4. Elizabeth Whittaker3,4,
  5. Tom Parks1,4
  1. 1Department of Infectious Disease, Imperial College Healthcare NHS Trust, St Mary's Hospital, London, UK
  2. 2Department of Microbiology, Imperial College Healthcare NHS Trust, St Mary's Hospital, London, UK
  3. 3Department of Paediatrics, Imperial College Healthcare NHS Trust, St Mary's Hospital, London, UK
  4. 4Department of Infectious Disease, Imperial College London, London, UK
  1. Correspondence to Dr Tom Parks, Department of Infectious Disease, Imperial College London, London, UK; t.parks{at}

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Post-streptococcal diseases include some of the most classical clinical presentations in medicine. From the early diastolic murmur in a young adult with rheumatic heart disease to the uncontrolled movements of a child with Sydenham’s chorea, these signs and symptoms triggered some of the earliest attempts of modern medicine to classify undifferentiated disease.

Driven by an abnormal immune response to Streptococcus pyogenes—widely known among clinicians as group A streptococcus (GAS)—these diseases are now predominantly seen in low-income settings.1 Consequently, in most high-income settings, many clinicians may now go an entire career without seeing a single case of poststreptococcal disease.

Nonetheless, while unusual, post-streptococcal diseases persist in high-income settings, and should not be forgotten.2 Following the surge in GAS infections among children in the winter of 2022–2023, exemplified by very high UK rates of scarlet fever and invasive GAS disease, there are once again reasons for concern about post-streptococcal disease,3 especially in the form of acute rheumatic fever and post-streptococcal glomerulonephritis. And yet, while this epidemiological picture may trigger suspicion, there are several challenges for clinicians and public health specialists in diagnosing and quantifying the burden of post-streptococcal disease in the UK.

The first barrier is clinical: diagnosing a case of rheumatic fever and other post-streptococcal sequelae can be difficult. The non-specific nature of symptoms mean that patients may present to a variety of different services: primary care, emergency departments, general paediatrics, cardiology, infectious diseases, rheumatology, nephrology and psychiatry. Patients may experience significantly different diagnostic workups, depending on which pathway …

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  • JH and KL are joint first authors.

  • Twitter @lizwwyld, @parks_tom

  • JH and KL contributed equally.

  • Contributors JH, KL and TP drafted the main text. AK and EW provided feedback and insights.

  • 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; internally peer reviewed.