Table 1 Overview of unexplained PAISs associated with documented infections

From: Unexplained post-acute infection syndromes

Pathogen

Name of PAIS

Viral pathogens

SARS-CoV-2

Post-acute sequelae of SARS-CoV-2 infection (PASC)

Post-acute COVID-19 syndrome (PACS)

Long COVID

Ebola

Post-Ebola syndrome (PES)

Post-Ebola virus disease syndrome (PEVDS)

Dengue

Post-dengue fatigue syndrome (PDFS)

Polio

Post-polio syndrome (PPS)

SARS

Post-SARS syndrome (PSS)

Chikungunya

Post-chikungunya chronic inflammatory rheumatism (pCHIK-CIR)

Post-chikungunya disease

EBV

No name

West Nile virus

No name

Ross River virusa

No name

Coxsackie Ba

No name

H1N1/09 influenzaa,b

No name

VZVa,b

No name

Non-viral pathogens

Coxiella burnetii

Q fever fatigue syndrome (QFS)

Borreliac

Post-treatment Lyme disease syndrome (PTLDS)

Giardia lambliaa,d

No name

  1. aLimited or very limited evidence base.
  2. bAssociation with increased use of ME/CFS diagnosis in health registry.
  3. cContradicting or unclear evidence base.
  4. dSupporting evidence derives from a single outbreak in Norway.