Cat pox

Last Updated: 2020-08-11

Author(s): Anzengruber F., Navarini A.

ICD11: -

A rare human smallpox disease transmitted by cats.

Transmission occurs via rodents and cattle, but mainly via cats. Skin lesions serve as entry ports.

  • Usually only one primary lesion, which initially appears as a reddened macula
  • In the course of the disease, formation of pustules and lumps, possibly an ulceration
  • Otherwise a reduced general condition, fever and lymphadenopathy

  • Clinical features
  • Electron microscopy (negative contrasting)
  • Serology
  • Pathogen detection

In almost 50% of cases hands or fingers are affected, otherwise face and neck.

Scarred healing occurs in 6-8 weeks.

  • Topical antiseptic
  • Approved systemic drugs do not exist. Cidovir has been shown to be effective in studies, but its use must be discussed due to its potentially lethal side effects

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