Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil.
University of the State of Pará, Institute of Veterinary Medicine, Castanhal, Pará, Brazil.
PLoS Negl Trop Dis. 2021 Sep 10;15(9):e0008792. doi: 10.1371/journal.pntd.0008792. eCollection 2021 Sep.
The present study reports the occurrence of rotavirus A (RVA), rotavirus D (RVD), rotavirus F (RVF), rotavirus G (RVG), and picobirnavirus (PBV) in fecal specimens of wild (n = 22), and exotic birds (n = 1) from different cities of Pará state. These animals were hospitalized at Veterinary Hospital of the Federal University of Pará, Brazil, in a period from January 2018 to June 2019. The animals exhibited different clinical signs, such as diarrhea, malnutrition, dehydration, and fractures. The results showed 39.1% (9/23) of positivity for RVA by RT-qPCR. Among these, one sample (1/9) for the NSP3 gene of T2 genotype was characterized. About 88.9% (8/9) for the VP7 gene belonging to G1, G3 equine like and G6 genotypes, and 55.5% (5/9) for the VP4 gene of P[2] genotype were obtained. In the current study, approximately 4.5% of the samples (1/23) revealed coinfection for the RVA, RVD and RVF groups. Furthermore, picobirnavirus (PBV) was detected in one of the 23 samples tested, and was classified in the Genogroup I. The findings represent the first report of RVA, RVD, RVF, RVG, and PBV genotypes in wild birds in Brazil, and due to wide distribution it can implies potential impacts of RVs, and PBVs on avian health, and other animals contributing to construction of new knowledge, and care perspectives.
本研究报告了在来自巴西帕拉州不同城市的野生(n=22)和外来鸟类(n=1)的粪便样本中出现的轮状病毒 A(RVA)、轮状病毒 D(RVD)、轮状病毒 F(RVF)、轮状病毒 G(RVG)和微小 RNA 病毒(PBV)。这些动物曾因不同临床症状,如腹泻、营养不良、脱水和骨折,在巴西帕拉联邦大学兽医医院住院治疗。结果显示,通过 RT-qPCR,RVA 的阳性率为 39.1%(9/23)。其中,有一个样本(1/9)的 NSP3 基因特征为 T2 基因型。关于 VP7 基因,有 88.9%(8/9)属于 G1、G3 马科类似型和 G6 基因型,55.5%(5/9)属于 P[2]基因型的 VP4 基因。在本研究中,大约 4.5%的样本(1/23)显示 RVA、RVD 和 RVF 组的混合感染。此外,在 23 个测试样本中检测到了微小 RNA 病毒(PBV),并将其归类于 I 型基因组。这些发现代表了巴西野生鸟类中首次报道的 RVA、RVD、RVF、RVG 和 PBV 基因型,由于其广泛分布,可能意味着 RVs 和 PBVs 对禽类健康和其他动物的潜在影响,有助于构建新知识和护理视角。