Diagnosis of Leucocytozoon caulleryi infection in commercial broiler breeders in South Korea.
This report confirms a recent outbreak of a Leucocytozoon caulleryi infection in a commercial broiler breeder flock in South Korea. Seven, 18-day-old broiler breeders (Gallus gallus) were necropsied following a history of depression, sudden death, and subcutaneous hemorrhages. On necropsy, subcutaneous hemorrhages were identified in the wings and legs, pectoral and thigh muscles, thymus, epicardium, pancreas, and kidneys. On histopathology, there were numerous schizonts and merozoits of a Leucocytozoon sp. noted in the heart, spleen, liver, kidneys, thymus, and bursa of Fabricius. Molecular analysis of the mitochondrial cytochrome oxidase b confirmed that the causative agent was Leucocytozoon caulleryi. Although L. caulleryi was diagnosed previously in South Korea, there had been no reports of L. caulleryi over the past several decades.
Dong-Hun
DH
Lee
Jun-Hyuk
JH
Jang
Byoung-Yoon
BY
Kim
Yong-Kuk
YK
Kwon
Susantha
S
Gomis
Joong-Bok
JB
Lee
Seung-Yong
SY
Park
In-Soo
IS
Choi
Chang-Seon
CS
Song
D000818:Animals; D002645:Chickens; D003576:Electron Transport Complex IV / Q000235:genetics / Q000378:metabolism; D005260:Female; D016787:Haemosporida / Q000235:genetics* / Q000302:isolation & purification*; D024101:Mitochondrial Proteins / Q000235:genetics / Q000378:metabolism; D008969:Molecular Sequence Data; D010802:Phylogeny; D011201:Poultry Diseases / Q000175:diagnosis* / Q000469:parasitology / Q000473:pathology; D011529:Protozoan Infections, Animal / Q000175:diagnosis* / Q000469:parasitology / Q000473:pathology; D015800:Protozoan Proteins / Q000235:genetics / Q000378:metabolism; D056910:Republic of Korea; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000662:veterinary; D017422:Sequence Analysis, DNA / Q000662:veterinary
D024101:Mitochondrial Proteins; D015800:Protozoan Proteins; D003576:Electron Transport Complex IV