Expression of <i>Bordetella pertussis</i> Antigens Fused to Different Vectors and Their Effectiveness as Vaccines by Han Xu, Jing Huang, Zhaolu Liu, Xin Li, Kangfeng Wang, Erling Feng, Jun Wu, Li Zhu, Kaihu Yao, Chao Pan, Hengliang Wang

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Decline of serologic immunity to diphtheria, tetanus and pertussis with age suggested a full life vaccination in mainland China by Dandan Liu, Xiaoping Cheng, Shi Wei, Lin Yuan, Changhui Chen, Kaihu Yao

“…Materials and methods: Serum samples were tested for IgG antibodies to diphtheria toxoid (DT), tetanus toxoid (TT) and pertussis toxin (PT) by using commercial ELISA kits. Results: A total of 666 sera of patients from 1 day to 89 years of age was collected from 2018 to 2019. …”
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Seroprevalence of tetanus and pertussis antibodies among health care workers in Wuhu, China by Wei Shi, Bingsong Wang, Qinghong Meng, Xianlai Zhang, Zhen Li, Fang He, Fei Ying, Linyan Cong, Kaihu Yao

“…Commercial ELISA kits were employed to quantify serum IgG antibodies against tetanus toxin (anti-TT IgG) and both IgG and IgA antibodies against pertussis toxin (anti-PT IgG, anti-PT IgA). A concentration of anti-TT IgG exceeding 0.1 IU/ml was deemed seroprotective against tetanus, while concentrations of anti-PT IgG ≥ 50 IU/ml or anti-PT IgA ≥ 15 IU/ml were indicative of a prior pertussis infection. …”
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