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B. canis can cause undulant fever in dogs, which is a zoonotic disease that can spread not only among dogs but also to humans. This poses a public health threat to society. In this study, a rapid and straightforward immune colloidal gold test strip was developed for the diagnosis of canine brucellosis through the detection of anti-LPS antibodies in serum samples. Rabbit anti-canine IgG conjugated with colloidal gold was employed as the colloidal gold-labeled antibody. The extracted high-purity R-LPS was employed as the capture antigen in the test line (T-line), while goat anti-rabbit IgG was utilized as the capture antibody in the control line (C-line). The colloidal gold strip exhibited high specificity in the detection of brucellosis, with no cross-reaction observed with the common clinical canine diseases caused by Canine coronavirus (CCV), Canine distemper virus (CDV), and Canine parvovirus (CPV). In comparison to the commercial iELISA kit, the sensitivity and specificity of the colloidal gold test strip were found to be 95.23% and 98.76%, respectively. The diagnostic coincidence rate was 98.47%. The findings of this study indicate that colloidal gold test strips may be employed as a straightforward, expeditious, sensitive, and specific diagnostic instrument for the identification of canine brucellosis, particularly in resource-limited regions.<\/jats:p>","DOI":"10.3390\/bios14080388","type":"journal-article","created":{"date-parts":[[2024,8,12]],"date-time":"2024-08-12T10:34:59Z","timestamp":1723458899000},"page":"388","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Development and Application of Colloidal Gold Test Strips for the Rapid Detection of Canine Brucellosis"],"prefix":"10.3390","volume":"14","author":[{"given":"Pengxiang","family":"Sun","sequence":"first","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"},{"name":"College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinmei","family":"Yang","sequence":"additional","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinyue","family":"Liu","sequence":"additional","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3259-1637","authenticated-orcid":false,"given":"Yanqing","family":"Bao","sequence":"additional","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingjing","family":"Qi","sequence":"additional","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangan","family":"Han","sequence":"additional","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guanhui","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shaohui","family":"Wang","sequence":"additional","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6794-2639","authenticated-orcid":false,"given":"Mingxing","family":"Tian","sequence":"additional","affiliation":[{"name":"Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Celli, J. 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