Eki Momoko, Sasaki Mizuki, Muramatsu Yasukazu, Kobayashi Mari, Ishikawa Takanori, Uchida Leo
Department of Ecosystem Studies, School of Environmental Science, The University of Shiga Prefecture, Shiga, Japan.
Laboratory of Zoonotic Diseases, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan.
J Vet Med Sci. 2025 Jul 11;87(7):838-842. doi: 10.1292/jvms.24-0267. Epub 2025 May 28.
Avian haemosporidia are a group of vector-borne hemoparasites that are non-pathogenic to native bird hosts; however, some species/lineages cause severe disease or death in poultry and non-native birds. We investigated haemosporidian parasites in wild bird carcasses collected from four prefectures in eastern Japan. DNA was extracted from the liver, and the haemosporidian cytochrome b gene was amplified by nested PCR followed by direct sequencing. Of the 40 bird samples belonging to 25 species, 12 haemosporidian lineages were detected: four from Plasmodium, one from Haemoproteus, and seven from Leucocytozoon. Of these 12, two Leucocytozoon lineages were suspected to be novel. Leucocytozoon lineage TUMER02 was first detected in Japan. Six lineages were detected among the six novel host bird species.
禽血孢子虫是一类由媒介传播的血液寄生虫，对本地鸟类宿主无致病性；然而，一些物种/谱系会在家禽和非本地鸟类中引起严重疾病或死亡。我们调查了从日本东部四个县收集的野生鸟类尸体中的血孢子虫寄生虫。从肝脏中提取DNA，通过巢式PCR扩增血孢子虫细胞色素b基因，然后直接测序。在属于25个物种的40个鸟类样本中，检测到12个血孢子虫谱系：4个来自疟原虫属，1个来自血变原虫属，7个来自白细胞虫属。在这12个谱系中，有两个白细胞虫谱系疑似为新谱系。白细胞虫谱系TUMER02首次在日本被检测到。在6个新的宿主鸟类物种中检测到6个谱系。
