Postinfectious syndromes

EBM Guidelines
Aug 13, 2021 • Latest change Aug 13, 2021
Anneli Lauhio

Table of contents


  • Postinfectious syndrome (or postinfectious state) refers to symptoms triggered by or associated with an infection and occurring after it.
  • Such symptoms may vary from quite mild to severe or life-threatening symptoms that must be identified and treated (e.g. Guillain–Barré syndrome).
  • The symptoms may affect various organ systems (central and peripheral nervous system, musculoskeletal system, gastrointestinal or respiratory tract or the heart) and not necessarily the organ system where the preceding infection occurred.
  • Diagnosis is based on the clinical picture and supported by laboratory tests and imaging. Normal levels of inflammatory markers do not exclude a postinfectious syndrome.
  • Symptoms are often mild, and if so, it is sufficient to identify the patient's state, give symptomatic treatment, as necessary, monitor the situation and explain it to the patient.

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