Clinical signs and histopathologic findings associated with a newly recognized protozoal disease (Trichomonas gallinae) in free-ranging house finches (Carpodacus mexicanus)

Nancy L. Anderson, Christine K. Johnson, Sandy Fender, Susan Heckly, Marcia Metzler, Pam Nave, Jean Yim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper describes the clinical signs and histopathologic findings associated with an emergent disease associated with Trichomonas gallinae infections in free-ranging house finches (Carpodacus mexicanus) in California. Wet mounts were necessary to detect T. gallinae infections in house finches because classical clinical presentation, such as caseous stomatitis or ingluvitis, occurred in <25% of cases. Early detection was instrumental in preventing trichomonosis outbreaks in a high-density nursery (P < 0.0001). Detection before onset of clinical signs was critical. Despite treatment, ∼95% of house finches died within 24 hr of displaying signs of illness. In contrast, 58% of T. gallinae-positive house finches housed in a nursery survived if they received treatment before onset of clinical signs. Recurrent protozoal shedding in survivors was not evident.

Original languageEnglish (US)
Pages (from-to)7-12
Number of pages6
JournalJournal of Wildlife Rehabilitation
Volume31
Issue number2
StatePublished - 2011

Fingerprint

Trichomonas gallinae
Trichomonas
protozoal infections
Finches
Nurseries
Trichomonas Infections
Stomatitis
trichomoniasis
emerging diseases
Disease Outbreaks
infection
Carpodacus mexicanus
Infection

Keywords

  • Carpodacus mexicanus
  • House finch
  • Trichomonad
  • Trichomonas gallinae
  • Wildlife rehabilitation

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

Cite this

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title = "Clinical signs and histopathologic findings associated with a newly recognized protozoal disease (Trichomonas gallinae) in free-ranging house finches (Carpodacus mexicanus)",
abstract = "This paper describes the clinical signs and histopathologic findings associated with an emergent disease associated with Trichomonas gallinae infections in free-ranging house finches (Carpodacus mexicanus) in California. Wet mounts were necessary to detect T. gallinae infections in house finches because classical clinical presentation, such as caseous stomatitis or ingluvitis, occurred in <25{\%} of cases. Early detection was instrumental in preventing trichomonosis outbreaks in a high-density nursery (P < 0.0001). Detection before onset of clinical signs was critical. Despite treatment, ∼95{\%} of house finches died within 24 hr of displaying signs of illness. In contrast, 58{\%} of T. gallinae-positive house finches housed in a nursery survived if they received treatment before onset of clinical signs. Recurrent protozoal shedding in survivors was not evident.",
keywords = "Carpodacus mexicanus, House finch, Trichomonad, Trichomonas gallinae, Wildlife rehabilitation",
author = "Anderson, {Nancy L.} and Johnson, {Christine K.} and Sandy Fender and Susan Heckly and Marcia Metzler and Pam Nave and Jean Yim",
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AU - Anderson, Nancy L.

AU - Johnson, Christine K.

AU - Fender, Sandy

AU - Heckly, Susan

AU - Metzler, Marcia

AU - Nave, Pam

AU - Yim, Jean

PY - 2011

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N2 - This paper describes the clinical signs and histopathologic findings associated with an emergent disease associated with Trichomonas gallinae infections in free-ranging house finches (Carpodacus mexicanus) in California. Wet mounts were necessary to detect T. gallinae infections in house finches because classical clinical presentation, such as caseous stomatitis or ingluvitis, occurred in <25% of cases. Early detection was instrumental in preventing trichomonosis outbreaks in a high-density nursery (P < 0.0001). Detection before onset of clinical signs was critical. Despite treatment, ∼95% of house finches died within 24 hr of displaying signs of illness. In contrast, 58% of T. gallinae-positive house finches housed in a nursery survived if they received treatment before onset of clinical signs. Recurrent protozoal shedding in survivors was not evident.

AB - This paper describes the clinical signs and histopathologic findings associated with an emergent disease associated with Trichomonas gallinae infections in free-ranging house finches (Carpodacus mexicanus) in California. Wet mounts were necessary to detect T. gallinae infections in house finches because classical clinical presentation, such as caseous stomatitis or ingluvitis, occurred in <25% of cases. Early detection was instrumental in preventing trichomonosis outbreaks in a high-density nursery (P < 0.0001). Detection before onset of clinical signs was critical. Despite treatment, ∼95% of house finches died within 24 hr of displaying signs of illness. In contrast, 58% of T. gallinae-positive house finches housed in a nursery survived if they received treatment before onset of clinical signs. Recurrent protozoal shedding in survivors was not evident.

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