Yadav Jay Prakash, Malik Satya Veer Singh, Dhaka Pankaj, Kumar Ashok, Kumar Manesh, Bhoomika Sirsant, Gourkhede Diksha, Singh Ran Vir, Barbuddhe Sukhadeo B, Rawool Deepak B
Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar, India.
Division of Virology, ICAR-Indian Veterinary Research Institute, Izatnagar, India.
Anim Biotechnol. 2022 Dec;33(7):1449-1458. doi: 10.1080/10495398.2021.1906264. Epub 2021 Apr 12.
Q fever caused by is an important zoonosis and has great public health significance. A total of 905 clinical samples from 387 cattle [serum ( = 387); vaginal swabs ( = 387); milk ( = 131)] and 59 serum samples from humans were collected from gaushala (cattle shelter) and screened for anti- IgG antibodies in the sera using an indirect-ELISA kit. Further, the samples were tested for DNA employing TaqMan real-time and conventional PCR assays targeting the 1 gene. In ELISA, 9.56% and 6.78% of animal and human sera samples were positive for anti- antibodies, respectively. Upon pathogen detection, 3.87% sera, 1.81% vaginal swabs, and 6.87% milk samples from cattle tested positive in TaqMan real-time PCR and 1.55% sera, 0.52% vaginal swabs, and 3.05% milk samples were found positive in conventional PCR. In humans, one serum sample was positive in both the PCR assays. The PCR positive samples ( = 12) were partially sequenced and the phylogenetic tree was constructed using gene sequences ( = 42) from a different host and geographical areas. The study highlights infection of cattle and their human contacts in gaushala and identifies relationships between strains identified in the gaushala and those in other parts of the globe.
由[病原体名称未给出]引起的Q热是一种重要的人畜共患病,具有重大的公共卫生意义。从牛舍(牛庇护所)收集了来自387头牛的总共905份临床样本[血清(=387);阴道拭子(=387);牛奶(=131)]和59份人类血清样本,并使用间接ELISA试剂盒检测血清中的抗[病原体名称未给出]IgG抗体。此外,采用针对1基因的TaqMan实时荧光定量PCR和常规PCR检测样本中的[病原体名称未给出]DNA。在ELISA检测中,动物和人类血清样本中分别有9.56%和6.78%的抗[病原体名称未给出]抗体呈阳性。在病原体检测中,牛的血清样本中有3.87%、阴道拭子样本中有1.81%、牛奶样本中有6.87%在TaqMan实时荧光定量PCR检测中呈阳性,常规PCR检测中血清样本有1.55%、阴道拭子样本有0.52%、牛奶样本有3.05%呈阳性。在人类中,一份血清样本在两种PCR检测中均呈阳性。对PCR阳性样本(=12)进行了部分测序,并使用来自不同宿主和地理区域的[病原体名称未给出]基因序列(=42)构建了系统发育树。该研究突出了牛舍中牛及其人类接触者的感染情况,并确定了牛舍中鉴定的菌株与全球其他地区菌株之间的关系。