O Olsvik

Author PubWeight™ 73.48‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Epidemiologic application of a standardized ribotype scheme for Vibrio cholerae O1. J Clin Microbiol 1993 3.59
2 The molecular epidemiology of cholera in Latin America. J Infect Dis 1993 3.26
3 Use of polymerase chain reaction for detection of toxigenic Vibrio cholerae O1 strains from the Latin American cholera epidemic. J Clin Microbiol 1992 3.10
4 Detection of Listeria monocytogenes in foods by immunomagnetic separation. Appl Environ Microbiol 1990 2.06
5 Enteropathogenic Escherichia coli serotype O111:HNT isolated from preterm neonates in Nairobi, Kenya. J Clin Microbiol 1989 1.86
6 Heterogeneity in the vanB gene cluster of genomically diverse clinical strains of vancomycin-resistant enterococci. Antimicrob Agents Chemother 1999 1.82
7 Isolation of Latin American epidemic strain of Vibrio cholerae O1 from US Gulf Coast. Lancet 1992 1.80
8 Detection of Escherichia coli heat-stable enterotoxin genes in pig stool specimens by an immobilized, colorimetric, nested polymerase chain reaction. J Clin Microbiol 1991 1.69
9 Probes and polymerase chain reaction for detection of food-borne bacterial pathogens. Int J Food Microbiol 1995 1.54
10 A sandwich ELISA method for detection of Staphylococcus aureus enterotoxins. Acta Pathol Microbiol Scand B 1981 1.40
11 Molecular subtyping of toxigenic Vibrio cholerae O139 causing epidemic cholera in India and Bangladesh, 1992-1993. J Infect Dis 1995 1.37
12 Detection of a streptomycin/spectinomycin adenylyltransferase gene (aadA) in Enterococcus faecalis. Antimicrob Agents Chemother 1999 1.31
13 Genetic linkage of the vanB2 gene cluster to Tn5382 in vancomycin-resistant enterococci and characterization of two novel insertion sequences. Microbiology 2000 1.22
14 Continuing high prevalence of VanA-type vancomycin-resistant enterococci on Norwegian poultry farms three years after avoparcin was banned. J Appl Microbiol 2000 1.22
15 Genetic probing of Campylobacter jejuni for cholera toxin and Escherichia coli heat-labile enterotoxin. Lancet 1984 1.21
16 Isolation of cmr, a novel Escherichia coli chloramphenicol resistance gene encoding a putative efflux pump. J Bacteriol 1996 1.21
17 Plasmids in Vibrio salmonicida isolated from salmonids with hemorrhagic syndrome (Hitra disease). J Clin Microbiol 1988 1.16
18 Typeability of Tn1546-like elements in vancomycin-resistant enterococci using long-range PCRs and specific analysis of polymorphic regions. Microb Drug Resist 2000 1.14
19 Staphylococcal enterotoxin A, B, and C produced by coagulase-negative strains within the family Micrococcaceae. Acta Pathol Microbiol Immunol Scand B 1982 1.08
20 Long PCRs of transposons in the structural analysis of genes encoding acquired glycopeptide resistance in enterococci. Biotechniques 1998 1.08
21 Identification of a double-stranded RNA virus by using polymerase chain reaction and magnetic separation of the synthesized DNA segments. J Clin Microbiol 1990 1.07
22 Demonstration of extracellular proteolytic enzymes from Legionella species strains by using synthetic chromogenic peptide substrates. Acta Pathol Microbiol Immunol Scand B 1982 1.06
23 Immunomagnetic separation of Salmonella from foods. Int J Food Microbiol 1991 1.05
24 Transmission of VanA-type vancomycin-resistant enterococci and vanA resistance elements between chicken and humans at avoparcin-exposed farms. Microb Drug Resist 1998 1.04
25 Detection of streptococcal pyrogenic exotoxin genes by a nested polymerase chain reaction. Mol Cell Probes 1993 1.01
26 Production and characterization of monoclonal antibodies to toxic shock syndrome toxin 1 and use of a monoclonal antibody in a rapid, one-step enzyme-linked immunosorbent assay for detection of picogram quantities of toxic shock syndrome toxin 1. J Clin Microbiol 1987 1.00
27 Serosurvey for orthopoxviruses in rodents and shrews from Norway. J Wildl Dis 1998 1.00
28 Evolutionary relationships among members of the genus Chlamydia based on 16S ribosomal DNA analysis. J Bacteriol 1997 1.00
29 Animal-to-human transmission of both sensitive and resistant Salmonella typhimurium demonstrated by plasmid profiling. Lancet 1985 1.00
30 Immunomagnetic separation and DNA hybridization for detection of enterotoxigenic Escherichia coli in a piglet model. J Clin Microbiol 1991 1.00
31 Plasmid characterization of Salmonella typhimurium transmitted from animals to humans. J Clin Microbiol 1985 1.00
32 Antibodies to orthopoxvirus in domestic cats in Norway. Vet Rec 1998 0.98
33 Naturally occurring orthopoxviruses: potential for recombination with vaccine vectors. J Clin Microbiol 1998 0.98
34 Detection of Clostridium perfringens type A enterotoxin in faecal and food samples using immunomagnetic separation (IMS)-ELISA. Int J Food Microbiol 1991 0.96
35 Detection of Clostridium perfringens type A enterotoxin by ELISA. Acta Pathol Microbiol Immunol Scand B 1982 0.96
36 Antibodies against orthopoxviruses in wild carnivores from Fennoscandia. J Wildl Dis 1998 0.94
37 A transferable multiple drug resistance plasmid from Vibrio cholerae O1. Microb Drug Resist 1995 0.91
38 Demonstration of extracellular chymotrypsin-like activity from various Legionella species. J Clin Microbiol 1982 0.91
39 Heat-stable-enterotoxin-producing Escherichia coli strains isolated from dogs. J Clin Microbiol 1988 0.88
40 Enterotoxin production by Staphylococcus aureus related to the origin of the strains. Acta Pathol Microbiol Scand B 1981 0.88
41 Isolation of enterotoxigenic Yersinia enterocolitica from birds in Norway. J Wildl Dis 1982 0.86
42 Low faecal carrier rate of vancomycin resistant enterococci in Norwegian hospital patients. Scand J Infect Dis 1998 0.86
43 Characterization of enterotoxigenic Escherichia coli. Serotypes, enterotoxins, adhesion fimbriae, and the presence of plasmids. Acta Pathol Microbiol Immunol Scand B 1985 0.85
44 [Antibiotic treatment of acute otitis in children]. Tidsskr Nor Laegeforen 1999 0.85
45 Multiresistant Shigella species from African AIDS patients: antibacterial resistance patterns and application of the E-test for determination of minimum inhibitory concentration. Scand J Infect Dis 1992 0.84
46 Identification of thermotolerant Campylobacter species from poultry using an enzyme-labelled oligonucleotide DNA probe. Int J Food Microbiol 1991 0.84
47 Virulence properties of Escherichia coli isolated from Ethiopian patients with acute or persistent diarrhoea. Ethiop Med J 1998 0.83
48 Characterization of Escherichia coli strains isolated from pigs with edema disease. Vet Microbiol 1992 0.82
49 A unique plasmid profile characterizing Salmonella enteritidis isolates from patients and employees in a hospital. APMIS 1990 0.82
50 Antimicrobial resistance of enteropathogenic Escherichia coli strains from a nosocomial outbreak in Kenya. APMIS 1991 0.82
51 A heat-labile necrotic activity in supernatants from cultures of Legionella pneumophila. Acta Pathol Microbiol Immunol Scand B 1982 0.82
52 Legionella extracellular protease activity on chromogenic peptides: a simplified procedure for biochemical enzyme identification. Acta Pathol Microbiol Immunol Scand B 1983 0.81
53 Enterotoxigenic Escherichia coli in the jejunum of piglets with neonatal diarrhea. Acta Vet Scand 1984 0.81
54 Lactoferricin B causes depolarization of the cytoplasmic membrane of Escherichia coli ATCC 25922 and fusion of negatively charged liposomes. FEBS Lett 2001 0.81
55 Tetracycline resistance genes in Kenyan hospital isolates of Salmonella typhimurium. APMIS 1992 0.80
56 Production of enterotoxin by Escherichia coli at four, twenty-two and thirty-seven degrees centigrade. Eur J Clin Microbiol 1982 0.80
57 Colonization of neonates in a nursery ward with enteropathogenic Escherichia coli and correlation to the clinical histories of the children. J Clin Microbiol 1989 0.79
58 Rapid detection of the methicillin-resistance gene, mecA, in coagulase-negative Staphylococci. Scand J Infect Dis 2001 0.78
59 Characteristics of four cowpox virus isolates from Norway and Sweden. APMIS 1998 0.78
60 Patterns of extracellular proline-specific endopeptidases in Legionella and Flavobacterium spp. demonstrated by use of chromogenic peptides. J Clin Microbiol 1983 0.78
61 Molecular subtyping of Vibrio cholerae O1 strains recently isolated from patient, food and environmental samples in Spain. Eur J Clin Microbiol Infect Dis 1994 0.77
62 Detection of infectious pancreatic necrosis virus (IPNV) RNA by hybridization with an oligonucleotide DNA probe. Vet Microbiol 1990 0.77
63 Enterotoxin production in milk at 22 and 4 degrees C by Escherichia coli and Yersinia enterocolitica. Appl Environ Microbiol 1982 0.76
64 Acquired tetracycline resistance genes in nosocomial Salmonella typhimurium infection in a Kenyan hospital. East Afr Med J 1993 0.76
65 Comparison of human immune responses to purified Vero cell and human diploid cell rabies vaccines by using two different antibody titration methods. J Clin Microbiol 1990 0.75
66 Comparison between ELISA and dye test for detection of naturally acquired toxoplasma gondii antibodies in the goat. Acta Vet Scand 1983 0.75
67 [Infections caused by multiresistant enterococci in Norway]. Tidsskr Nor Laegeforen 1998 0.75
68 Specific DNA fragments coding for ST1 and LT1 toxins, and K88 (F4) adhesin in enterotoxigenic Escherichia coli. Zentralbl Veterinarmed B 1991 0.75
69 [Gene technology in medical microbiology--epidemiology and diagnosis]. Tidsskr Nor Laegeforen 1989 0.75
70 Detection of staphylococcal enterotoxin A, B, and C in milk by an ELISA procedure. Acta Vet Scand 1982 0.75
71 [First infection with vancomycin resistant type VanA enterococci in a Norwegian hospital]. Tidsskr Nor Laegeforen 1998 0.75
72 Chlorpromazine inhibition of enterotoxin-induced fluid secretion and cAMP production in rat ileum. Eur J Pharmacol 1982 0.75
73 [Production and purification of thermolabile enterotoxin of Escherichia coli (author's transl)]. Infection 1980 0.75
74 Comparison of thymidine kinase and A-type inclusion protein gene sequences from Norwegian and Swedish cowpox virus isolates. APMIS 1999 0.75
75 Demonstration of Escherichia coli heat-labile enterotoxin using bacterial cell sonicates. Acta Pathol Microbiol Immunol Scand B 1982 0.75
76 The CAMP test performed by using Staphylococcus aureus sphingomyelinase (beta-haemolysin) and Clostridium perfringens lecithinase. NIPH Ann 1981 0.75
77 Hyaluronidase production, lactose and salicin fermentation and phage-typability in bovine group B Streptococci. NIPH Ann 1981 0.75
78 Differences in bindings to the GM1 receptor by heat-labile enterotoxin of human and porcine Escherichia coli strains. NIPH Ann 1983 0.75
79 A sensitive ELISA method for protein A detection. Acta Pathol Microbiol Scand B 1981 0.75