{
  "url": "https://openlegislation.uk/eu-decision-2003-422/annex/chapter-II/division-D",
  "json_url": "https://openlegislation.uk/eu-decision-2003-422/annex/chapter-II/division-D.json",
  "legislation": "eudn/2003/422",
  "legislation_title": "2003/422/EC: Commission Decision of 26 May 2003 approving an African swine fever diagnostic manual (Text with EEA relevance) (notified under document number C(2003) 1696)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2003-422",
  "path": "annex/chapter/II/division/D",
  "kind": "division",
  "number": "D",
  "heading": "CHRONIC FORMS",
  "text": "Chronic forms of the disease are rare. In chronic forms, secondary bacterial infections can be observed. As clinical signs of chronic ASF are rather non-specific, many other diseases must be considered for differential diagnosis. Increased body temperature is not necessarily present in every animal, but in an infected holding fever can be detected at least in some pigs.\nClinical symptoms of chronic ASF may include respiratory problems, abortions, arthritis, chronic skin ulcers or necrosis, not resembling the typical clinical picture of ASF virus infections. The lesions may be minimal or absent. Histopathological findings are characterised by enlarged lymph nodes and spleen, pleuritis and fibrinous pericarditis and infiltrated pneumonitis. Focal caseous necrosis and mineralisation of the lung have also been described.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2003/422/annex/chapter/II/division/D",
    "retrieved_at": "2026-11-01T15:18:22.461284+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}