Author: FAN, Wen-Sheng; LI, He-Ming; HE, Yi-Ning; TANG, Ning; ZHANG, Li-Hua; WANG, Hai-Yong; ZHONG, Lian; CHEN, Jian-Cai; WEI, Tian-Chao; HUANG, Teng; MO, Mei-Lan; WEI, Ping
Title: Immune protection conferred by three commonly used commercial live attenuated vaccines against the prevalent local strains of avian infectious bronchitis virus in southern China Document date: 2018_7_18
ID: ty3cxcdt_30
Snippet: In summary, the present study indicated that the commercial attenuated vaccines H120, 4/91 and LDT3-A could not provide complete protection against the prevalent isolates of IBV in southern China. The 4/91 vaccine demonstrated the best immune protection against the IBV strains prevalent in southern China, while LDT3-A vaccine was less protective and H120 vaccine provided the least protection. The results also stressed the necessity of developing .....
Document: In summary, the present study indicated that the commercial attenuated vaccines H120, 4/91 and LDT3-A could not provide complete protection against the prevalent isolates of IBV in southern China. The 4/91 vaccine demonstrated the best immune protection against the IBV strains prevalent in southern China, while LDT3-A vaccine was less protective and H120 vaccine provided the least protection. The results also stressed the necessity of developing new vaccines containing a homologous serotype strain and the prime-boost vaccination schedules in combination with application of two different IBV vaccine strains.
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