Pseudomalaria in a domestic pigeon: a case report

Area of Science:

• Veterinary Parasitology
• Avian Pathology
• Molecular Diagnostics

Background:

• Haemoproteus columbae is a common protozoan parasite affecting birds.
• Pigeon malaria, or pseudomalaria, can cause significant health issues in domestic pigeons.
• Accurate diagnosis is crucial for effective treatment and control.

Purpose of the Study:

• To diagnose and confirm Haemoproteus columbae infection in a domestic pigeon.
• To identify the causative agent and potential vectors of pseudomalaria.

Main Methods:

• Microscopic examination of thin blood smears to identify gametocytes.
• Polymerase Chain Reaction (PCR) assay targeting the Cytochrome b (cyt b) gene for parasitic DNA confirmation.
• Identification of the vector Pseudolynchia canariensis.

Main Results:

• Mature and immature halter-shaped gametocytes of Haemoproteus columbae were observed.
• PCR confirmed the parasitic infection by amplifying a 207 bp fragment of the cyt b gene.
• The biting louse fly, Pseudolynchia canariensis, a known vector, was found on the affected pigeon.

Conclusions:

• The study successfully diagnosed an acute case of pigeon malaria (pseudomalaria) caused by Haemoproteus columbae.
• Integrated diagnostic methods, including microscopy and molecular techniques, are effective for identifying avian hemoparasites.
• The presence of the vector highlights potential transmission routes and the importance of vector control.