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The expression of plasmid mediated afimbrial adhesin genes in an avian septicemic Escherichia coli strain
Eliana Guedes Stehling, *, Tatiana Amabile Campos, Marcelo Brocchi, Vasco Ariston de Carvalho Azevedo, Wanderley Dias da Silveira 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 1호 10 75-83 (9 pages)
An Escherichia coli strain (SEPT13) isolated from the liver of a hen presenting clinical signs of septicaemia had a LD50 of 4.0 × 105 CFU/ml in one-day-old chickens, expressed Ia, Ib, E1, E3, K and B colicins and aerobactin. The strain was ampicillin and streptomycin resistant, and found to have fimA, csgA and tsh DNA related sequences; it could adhere to and invade HEp-2 and tracheal epithelial cells, expressed fimbriae (observed by electron microscopy), and had five plasmids of 2.7, 4.7,... -
An inactivated vaccine to control the current H9N2 low pathogenic avian influenza in Korea
Jun Gu Choi, Youn Jeong Lee, *, Yong Joo Kim, Eun Kyoung Lee, Ok Mi Jeong, Haan Woo Sung, Jae Hong Kim, Jun Hun Kwon1 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 1호 9 67-74 (8 pages)
(A/chicken/Korea/01310/ 2001) was selected based on its pathogenic, antigenic, and genetic properties. However, in animal experiments, the efficacy of the vaccine was found to be very low without concentration of the antigen (27 to 210 hemagglutinin unit). In order to overcome the low productivity, we passaged the vaccine candidate virus to chicken eggs. After the 20th passage, the virus was approximately ten times more productive compared with the parent virus. For the most part, the passaged... -
Sequence analysis of the S1 glycoprotein gene of infectious bronchitis viruses: identification of a novel phylogenetic group in Korea
Ji-Hyun Jang, Haan-Woo Sung, Chang-Seon Song, Hyuk-Moo Kwon* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 4호 13 401-408 (8 pages)
Twelve Korean infectious bronchitis viruses (IBVs) were isolated in the field from chickens suspected of being carriers of infectious bronchitis between 2001 and 2003. The S1 glycoprotein genes of these IBV isolates were amplified by reverse transcriptase-polymerase chain reaction (RT- PCR) and analyzed by restriction fragment length polymorphism (RFLP) analysis. These Korean IBV isolates were classified into three groups according to their RFLP patterns obtained using the restriction enzyme... -
Efficacy of VP2 protein expressed in E. coli for protection against highly virulent infectious bursal disease virus
Abdul Rahman Omar, Chong Lee Kim, Mohd Hair Bejo, Aini Ideris 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 3호 6 241-247 (7 pages)
(SPF) chickens. Six out of seven chickens that were injected three times with crude VP2 protein developed significant antibody titer against IBDV. However, only four out of the seven chickens survived the hvIBDV challenge. Despite showing low antibody titer profiles, all chickens immunized with the heat-inactivated whole virus also survived the challenged with hvIBDV. However, all of these chickens had bursal atrophy and mild to moderate depletion of lymphocytes. Thus, antibodies raised against... -
Primary survey of avian influenza virus and Newcastle disease virus infection in wild birds in some areas of Heilongjiang Province, China
Yu Ping Hua, Hong Liang Chai, Si Yuan Yang, Xiang Wei Zeng, Ying Sun 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2005, 제 6권 제 4호 9 311-315 (5 pages)
Two hundred thirty specimens of wild birds were collected from some areas in Heilongjiang Province during the period of 2003~2004, including two batches of specimens collected randomly from a same flock of mallards in Zhalong Natural Reserve in August and December, 2004, respectively. Primary virus isolation and identification for avian influenza virus (AIV) and Newcastle disease virus (NDV) were performed. The results showed that only two specimens of young mallards collected from Zhalong... -
Correlations in the results of virus neutralization test, hemagglutination inhibition test, and enzyme-linked immunosorbent assay to determine infectious bronchitis virus vaccine potency
Mi-ja Park , Seong-joon Joh , Kang-seuk Choi , Aeran Kim , Min-goo Seo , Jae-young Song , Seon-jong Yun 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 4 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2016, 제 56권 제 3호 9 189-192 (4 pages)
