Abstract
Brucellosis is a severe public health problem in the Inner Mongolia regions of China. The recent prevalence of brucellosis outbreaks may be attributed to an increase in the activity of ticks and other air-borne vectors. Dermacentor nuttalli (D. nuttalli) is a native tick species of Inner Mongolia; similar to other tick species, D. nuttalli carries a variety of pathogens that can be transmitted to a wide range of animals. In this study, we have investigated the potential of D. nuttalli in transmitting brucellosis. From 2015 to 2019, 2,256 ticks were collected from 23 different pastoral areas of Hulun Buir. Brucellosis pathogen was detected using DNA extracted from different developmental stages of ticks. Salivary gland and midgut tissue samples were used as templates to amplify Brucella Bscp31 gene (Brucella genus-specific gene) by using TaqMan Real-Time polymerase chain reaction (PCR). To detect the presence of Bscp31 protein, which is specific to Brucella spp., in the midgut and salivary gland tissues of D. nuttalli, Western blotting and immunofluorescence were performed. Additionally, Brucella spp. were isolated using a culture medium. Tick samples were identified as D. nuttalli. Different percentages of Brucella genus-specif...Continue Reading
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