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Haemoproteus Haemoproteus columbaecolumbae
Submitted bySubmitted by
P. MahalingamP. Mahalingam
BVM 06066BVM 06066
Scientific classificationScientific classification
• Domain: Domain: Eukaryota• Superphylum:Superphylum:Alveolata• Phylum: Phylum: Apicomplexa• Class: Class: Aconoidasida• Order: Order: Haemosporida• Family: Family: Plasmodiidae• Genus: Genus: HaemoproteusHaemoproteus• Species: Species: columbaecolumbae
GENUS INTRODUCTIONGENUS INTRODUCTION• Genus created was by Genus created was by KruseKruse in 1890 in 1890 • Greek : : HaimaHaima - blood - blood • ProteusProteus - a sea god - a sea god ( (who had the power of who had the power of
assuming different shapesassuming different shapes))• Synonyms of Synonyms of HaemoproteusHaemoproteus::
•Halteridium, , •Haemocystidium
• Intracellular parasites - Intracellular parasites - erythrocytes • Pseudomalaria similarities with Pseudomalaria similarities with Plasmodium
species species
Haemoproteus Haemoproteus columbaecolumbae
• Host Host : Pigeon (: Pigeon (Columba livia), doves. ), doves.
• Vector Vector : : Pseudolynchia Pseudolynchia canariensis -canariensis - louse flies (louse flies (Hippoboscidae) )
MorphologyMorphology
• Gametocyte Gametocyte partially partially surrounds the surrounds the cell’s nucleus cell’s nucleus
• Multiple, Multiple, refractile, golden-refractile, golden-brown particlesbrown particles
of hemozoin of hemozoin pigment. pigment.
Life cycleLife cycle • salivary glands of the vector of the vector
sporozoite Infective stage Infective stage
bites a new host bites a new host
Endothelial cells of of blood vessels & & lung, , liver and and spleen
asexual reproduction schizonts
Numerous merozoites Numerous merozoites
penetration penetration erythrocytes
Mature either Mature either macrogametocytes or microgametocytes or microgametocytes
another blood-sucking insect another blood-sucking insect
Life cycle – cond.Life cycle – cond. ingested by ingested by another blood-sucking insectanother blood-sucking insect
sexual reproduction in the midgut of the insect sexual reproduction in the midgut of the insect
to produce oocyststo produce oocysts
rupture and release numerous rupture and release numerous sporozoitessporozoites
invade the invade the salivary glandsalivary gland
subsequent infection for subsequent infection for another hostanother host
PATHOGENESISPATHOGENESIS• To produce subclinical infectionsTo produce subclinical infections• EEnlarged gizzards.nlarged gizzards.• Enlargement of the spleen, liver and kidneys Enlargement of the spleen, liver and kidneys • May appear chocolate-brown due to hemozoin depositionMay appear chocolate-brown due to hemozoin deposition• Infected birds may suffer from reluctance to move, Infected birds may suffer from reluctance to move, • Ruffled appearance, Ruffled appearance, • Prostration And Death. Prostration And Death. • Include Parasitemia And anemia. Include Parasitemia And anemia. • Large megaloschizonts may be present in skeletal muscles, Large megaloschizonts may be present in skeletal muscles, • Particularly those of the thighs and back. Particularly those of the thighs and back. • The average cumulative mortality for flocks experiencing The average cumulative mortality for flocks experiencing
outbreaks may be over 20%.outbreaks may be over 20%.
DiagnosisDiagnosis
• Peripheral & Cardiac Blood smear Peripheral & Cardiac Blood smear examination.examination.
• Liver & spleen impression smear were Liver & spleen impression smear were stained by Giemsastained by Giemsa
• It shows a typical Halter shaped Gamonts in It shows a typical Halter shaped Gamonts in RBCsRBCs
• PM – Examination PM – Examination
Treatment and ControlTreatment and Control
• Antimalarial drugs - chloroquine may be usefulAntimalarial drugs - chloroquine may be useful
• Control :Control :• By eliminating the vector populationBy eliminating the vector population• Habitat management Habitat management • Application of insecticides Application of insecticides • Use of ventilation fans Use of ventilation fans
ReferencesReferences
• Veterinary protozoology -by Norman D. Levine Veterinary protozoology -by Norman D. Levine - 1985 - Technology & Engineering - 414 pages- 1985 - Technology & Engineering - 414 pages
• Bowman D: Georgis’ Parasitology for Bowman D: Georgis’ Parasitology for Veterinarians: Eighth Edition. Elsevier Science, Veterinarians: Eighth Edition. Elsevier Science, St. Louis, MO, 2003.St. Louis, MO, 2003.
• www.nwhc.usgs.gov/publications/www.nwhc.usgs.gov/publications/field_manual/field_manual/