Malaria in an eastern screech owl (Otus asio)

Paul Tavernier, Miguel Sagesse, Arnaud Van Wettere, Patrick T Redig

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Owls are frequent carriers of blood parasites but clinical malaria infections are rare. Various stages of Plasmodium subpraecox were seen in 90% of the erythrocytes of an Eastern screech owl (Otus asio) showing symptoms consistent with malaria 1 wk after admission for traumatic injuries. An additional unidentified blood parasite, either a Plasmodium or a Haemoproteus spp. was found in small numbers of red blood cells on blood films examined at admission and at day 7 postadmission. Combined infestation, trauma-induced stress, and iatrogenic corticosteroid administration are possible factors that could have induced disease. Oral treatment with mefloquine at 30 mg/kg, repeated after 12, 24, and 48 hr, proved successful in eliminating both organisms and signs of clinical disease.

Original languageEnglish (US)
Pages (from-to)433-435
Number of pages3
JournalAvian diseases
Issue number3
StatePublished - Sep 2005


  • Malaria
  • Otus asio
  • Owl
  • Plasmodium subpraecox

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