نتایج جستجو برای: attenuated live vaccine

تعداد نتایج: 253717  

2018
Changchao Huan Mingyu Fan Qingru Cheng Xiaobo Wang Qingqing Gao Wanbin Wang Song Gao Xiufan Liu

Porcine circovirus type 2 (PCV2) commercial vaccines are either inactivated PCV2 isolates or subunit vaccine based on the Cap protein of PCV2. Currently, no live-attenuated vaccines are yet available. Although the predominant circulating subtype worldwide is PCV2b, the emerging PCV2d subtype is also increasingly associated with PCV disease. In this study, piglets were inoculated with a live-att...

Journal: :Journal of the Pediatric Infectious Diseases Society 2019

Journal: :Iranian journal of veterinary research 2016
Q Gong N Qu M F Niu C L Qin

Avian Pasteurella multocida is the causative agent of fowl cholera, a disease much affecting the poultry industry. In order to study the efficacy of the recombinant subunit vaccine constructed with ptfA gene of avian P. multocida, the ptfA gene fragment amplified by PCR from avian P. multocida was cloned into the prokaryotic expression vector pET32a and the recombinant plasmid pET32a-ptfA was o...

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