Juozaitytė-Ngugu Evelina, Švažas Saulius, Šneideris Donatas, Rudaitytė-Lukošienė Eglė, Butkauskas Dalius, Prakas Petras
Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania.
Animals (Basel). 2021 Nov 14;11(11):3258. doi: 10.3390/ani11113258.
Members of the family Corvidae are ecologically flexible omnivorous birds, particularly adaptive to urban habitats, and living in proximity to humans; these birds may serve as definitive hosts (DH) for spp., but research about this is lacking. In the present study, intestinal samples from 91 corvids collected in Lithuania were molecularly tested by species-specific PCR targeting the ITS1 and genes and subsequently sequenced for the presence of spp. Under a light microscope, oocysts of spp. were observed in 43 samples (47.3%), while molecular methods, detected spp. in 77 birds (84.6%). Eleven spp. (. , . , potentially pathogenic . , . , . , . , . , . , . , . , and . ) were identified in the intestinal samples from six corvid species from Lithuania. Infections with multiple spp. were detected in 79.2% of the infected corvid birds. Three of the identified spp. use corvids as intermediate hosts (IH); therefore, corvids may serve as IH and DH of the same species. Based on molecular results and on corvid diet, omnivorous corvids may play an important role in transmitting spp.
鸦科鸟类是生态适应性强的杂食性鸟类，特别适应城市栖息地，且与人类生活在相近区域；这些鸟类可能是某些物种的终末宿主（DH），但对此缺乏相关研究。在本研究中，对在立陶宛采集的91只鸦科鸟类的肠道样本进行了分子检测，采用针对ITS1和基因的物种特异性PCR方法，随后对样本进行测序以检测某些物种的存在。在光学显微镜下，在43个样本（47.3%）中观察到了某些物种的卵囊，而分子方法在77只鸟类（84.6%）中检测到了某些物种。在来自立陶宛六种鸦科鸟类的肠道样本中鉴定出了11种某些物种（包括……，……，潜在致病性的……，……，……，……，……，……，……，……和……）。在79.2%的受感染鸦科鸟类中检测到了多种某些物种的感染。鉴定出的某些物种中有三种将鸦科鸟类用作中间宿主（IH）；因此，鸦科鸟类可能既是同一某些物种的中间宿主又是终末宿主。基于分子结果和鸦科鸟类的饮食，杂食性鸦科鸟类可能在传播某些物种方面发挥重要作用。
