P E Shewen

Author PubWeight™ 74.10‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Cytotoxin of Pasteurella haemolytica acting on bovine leukocytes. Infect Immun 1982 3.95
2 Nucleotide sequence of the leukotoxin genes of Pasteurella haemolytica A1. Infect Immun 1987 3.36
3 Response of calves to lung challenge exposure with Pasteurella haemolytica after parenteral or pulmonary immunization. Am J Vet Res 1980 2.18
4 The frequency, distribution and effects of antibodies, to seven putative respiratory pathogens, on respiratory disease and weight gain in feedlot calves in Ontario. Can J Vet Res 1989 1.95
5 Bovine respiratory disease: commercial vaccines currently available in Canada. Can Vet J 2000 1.88
6 Antibody titers to Pasteurella haemolytica A1 in Ontario beef cattle. Can J Comp Med 1982 1.87
7 Cloning and expression of the leukotoxin gene of Pasteurella haemolytica A1 in Escherichia coli K-12. Infect Immun 1985 1.81
8 Toxicity of Haemophilus pleuropneumoniae for porcine lung macrophages, peripheral blood monocytes, and testicular cells. Infect Immun 1981 1.76
9 Chlamydial infection in animals: a review. Can Vet J 1980 1.60
10 Automated colorimetric assay for the detection of Pasteurella haemolytica leucotoxin. Vet Microbiol 1986 1.58
11 Mannheimia haemolytica and bovine respiratory disease. Anim Health Res Rev 2007 1.52
12 A neutral glycoprotease of Pasteurella haemolytica A1 specifically cleaves O-sialoglycoproteins. Infect Immun 1992 1.43
13 Pasteurella haemolytica cytotoxin: production by recognized serotypes and neutralization by type-specific rabbit antisera. Am J Vet Res 1983 1.40
14 Another 2-way MLV vaccine against agents of bovine respiratory disease - A reply. Can Vet J 2000 1.39
15 A group level analysis of the associations between antibodies to seven putative pathogens and respiratory disease and weight gain in Ontario feedlot calves. Can J Vet Res 1990 1.34
16 Pasteurella haemolytica cytotoxin neutralizing activity in sera from Ontario beef cattle. Can J Comp Med 1983 1.34
17 The microbial flora of the respiratory tract in feedlot calves: associations between nasopharyngeal and bronchoalveolar lavage cultures. Can J Vet Res 1991 1.34
18 Proteolysis of sialoglycoprotein by Pasteurella haemolytica cytotoxic culture supernatant. Infect Immun 1983 1.31
19 Efficacy of recombinant leukotoxin in protection against pneumonic challenge with live Pasteurella haemolytica A1. Infect Immun 1991 1.27
20 Evidence for the Pasteurella haemolytica cytotoxin as a product of actively growing bacteria. Am J Vet Res 1985 1.25
21 Cloning of a serotype-specific antigen from Pasteurella haemolytica A1. Infect Immun 1986 1.25
22 Molecular studies of Ssa1, a serotype-specific antigen of Pasteurella haemolytica A1. Infect Immun 1991 1.18
23 Abortion and subsequent excretion of chlamydiae from the reproductive tract of sheep during estrus. Infect Immun 1994 1.10
24 The association of titers to bovine coronavirus with treatment for bovine respiratory disease and weight gain in feedlot calves. Can J Vet Res 1998 1.09
25 Bronchoalveolar lavage of cranial and caudal lung regions in selected normal calves: cellular, microbiological, immunoglobulin, serological and histological variables. Can J Vet Res 1988 1.09
26 Serological titers to bovine herpesvirus 1, bovine viral diarrhea virus, parainfluenza 3 virus, bovine respiratory syncytial virus and Pasteurella haemolytica in feedlot calves with respiratory disease: associations with bacteriological and pulmonary cytological variables. Can J Vet Res 1992 1.08
27 An evaluation of antimicrobial therapy for undifferentiated bovine respiratory disease. Can Vet J 1990 1.03
28 Clinical and serological evaluation of a Pasteurella haemolytica A1 capsular polysaccharide vaccine. Vaccine 1993 0.99
29 Identification of genus-specific epitopes on the outer membrane complexes of Chlamydia trachomatis and Chlamydia psittaci immunotypes 1 and 2. Infect Immun 1989 0.96
30 Localization of chronic Chlamydia psittaci infection in the reproductive tract of sheep. J Infect Dis 1996 0.96
31 Effect of pretransit mixing on fatal fibrinous pneumonia in calves. J Am Vet Med Assoc 1995 0.92
32 Comparison of protection of experimentally challenged cattle vaccinated once or twice with a Pasteurella haemolytica bacterial extract vaccine. Can J Vet Res 1995 0.91
33 Case report. Feline chlamydial infection. Can Vet J 1978 0.90
34 Vaccination of neonatal colostrum-deprived calves against Pasteurella haemolytica A1. Can J Vet Res 2000 0.90
35 Serologic responses of young colostrum fed dairy calves to antigens of Pasteurella haemolytica A1. Vaccine 1998 0.89
36 Cytological findings in bronchoalveolar lavage fluid from feedlot calves: associations with pulmonary microbial flora. Can J Vet Res 1992 0.88
37 Safety, immunogenicity, and efficacy of two Escherichia coli cya crp mutants as vaccines for broilers. Avian Dis 2002 0.87
38 Pregnancy failure following vaginal infection of sheep with Chlamydia psittaci prior to breeding. Infect Immun 1996 0.87
39 Longitudinal study of Clostridium difficile and antimicrobial susceptibility of Escherichia coli in healthy horses in a community setting. Vet Microbiol 2012 0.86
40 A comparison of the efficacy of a live and four inactivated vaccine preparations for the protection of cats against experimental challenge with Chlamydia psittaci. Can J Comp Med 1980 0.86
41 Influence of in-feed virginiamycin on the systemic and mucosal antibody response of chickens. Poult Sci 2008 0.85
42 Role of CD4+, CD8+ and double negative T-cells in the protection of SCID/beige mice against respiratory challenge with Rhodococcus equi. Can J Vet Res 1996 0.85
43 Direct immunofluorescence microscopy for rapid screening of Campylobacter enteritis. J Clin Microbiol 1986 0.85
44 Passive immunity to Pasteurella haemolytica A1 in dairy calves: effects of preparturient vaccination of the dams. Can J Vet Res 1994 0.84
45 Effect of transportation on fatal fibrinous pneumonia and shrinkage in calves arriving at a large feedlot. J Am Vet Med Assoc 1995 0.84
46 The effect of Pasteurella haemolytica A1 leukotoxic culture supernate on the in vitro proliferative response of bovine lymphocytes. Vet Immunol Immunopathol 1991 0.84
47 Comparison of serological techniques to measure antibody to Pasteurella haemolytica A1. Can J Comp Med 1985 0.82
48 The detection of the sialoglycoprotease gene and assay for sialoglycoprotease activity among isolates of Pasteurella haemolytica A1 strains, serotypes A13, A14, T15 and A16. FEMS Microbiol Lett 1994 0.82
49 Sialoglycoprotease of Pasteurella haemolytica A1: detection of antisialoglycoprotease antibodies in sera of calves. Can J Vet Res 1994 0.82
50 Evidence of bovine immunoglobulin G1 (IgG1) protease activity in partially purified culture supernate of Pasteurella haemolytica A1. Can J Vet Res 1996 0.81
51 Preliminary investigation of the mechanism of inhibition of bovine lymphocyte proliferation by Pasteurella haemolytica A1 leukotoxin. Vet Immunol Immunopathol 1991 0.81
52 A survey of the conjunctival flora of clinically normal cats and cats with conjunctivitis. Can Vet J 1980 0.81
53 Towards development of an edible vaccine against bovine pneumonic pasteurellosis using transgenic white clover expressing a Mannheimia haemolytica A1 leukotoxin 50 fusion protein. Infect Immun 2001 0.81
54 Chlamydia psittaci infection and associated infertility in sheep. Can J Vet Res 1993 0.81
55 Pasteurella haemolytica leukotoxin induces histamine release from bovine pulmonary mast cells. Can J Vet Res 1994 0.79
56 Effects of Pasteurella haemolytica A1 culture supernatant on mechanisms controlling bovine alveolar macrophage oxygen radical production. Can J Vet Res 1990 0.79
57 Immunocytologic detection of Chlamydia psittaci from cervical and vaginal samples of chronically infected ewes. Can J Vet Res 1998 0.78
58 In vitro cytokine responses of peripheral blood mononuclear cells from healthy dogs to distemper virus, Malassezia and Toxocara. Vet Immunol Immunopathol 2009 0.78
59 Performance of a whole blood interferon-gamma assay for detection and eradication of caseous lymphadenitis in sheep. Vet Microbiol 2007 0.78
60 Effects of delivery method on serological responses of bighorn sheep to a multivalent Pasteurella haemolytica supernatant vaccine. J Wildl Dis 2000 0.78
61 Inhibition of the blastogenic response of peripheral blood mononuclear cells to mitogen and antigens by bovine pulmonary macrophages and their culture supernatants. Res Vet Sci 1981 0.77
62 The effect of Pasteurella haemolytica and the leukotoxin of Pasteurella haemolytica on bovine lung explants. Can J Vet Res 1990 0.75
63 Naturally occurring lesions of the uterine tube in sheep and serologic evidence of exposure to Chlamydophila abortus. Can J Vet Res 2000 0.75
64 Observation on shipping Fever. Can Vet J 1983 0.75
65 Effect of 5-hydroxytryptamine type-2 receptor blockade on pulmonary function in calves with experimentally induced Pasteurella haemolytica pneumonia. Am J Vet Res 1996 0.75
66 Experimentally induced pneumonia in scid/beige mice, using a bovine isolate of Pasteurella haemolytica. Comp Med 2000 0.75
67 Preparturient vaccination to enhance passive immunity to the capsular polysaccharide of Pasteurella haemolytica A1. Vet Immunol Immunopathol 1996 0.75
68 Chlamydia psittaci infection in sheep: a paradigm for human reproductive tract infection. J Reprod Immunol 1997 0.75
69 Incorporation of antigens from Mannheimia haemolytica culture supernatant, and recombinant bovine C3d into ISCOM matrix using neutravidin-biotin interaction. Biotechnol Appl Biochem 2011 0.75
70 Response of the meadow vole (Microtus pennsylvanicus) to experimental inoculation with Borrelia burgdorferi. J Wildl Dis 1994 0.75