Browsing Articles by Author "Blatny, Janet Martha"
Now showing items 1-15 of 15
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Assessment of the dispersion of Legionella-containing aerosols from a biological treatment plant
Blatny, Janet Martha; Tutkun, Murat; Fossum, Hannibal Eie; Skogan, Gunnar; Fykse, Else-Marie; Andreassen, Øyvind; Waagen, Viggo; Reif, Bjørn Anders Pettersson (2011)Legionella was detected in aeration ponds (biological treatment plant) at Borregaard Ind. Ltd., Norway, and in air samples harvested directly above these ponds. Since 2005, three outbreaks of legionellosis occurred within ... -
Characterization of airborne bacteria at an underground subway station
Dybwad, Marius; Granum, Per Einar; Bruheim, Per; Blatny, Janet Martha (2012)The reliable detection of airborne biological threat agents depends on several factors, including the performance criteria of the detector and its operational environment. One step in improving the detector's performance ... -
Comparative testing and evaluation of nine different air samplers: End-to-end sampling efficiencies as specific performance measurements for bioaerosol applications
Dybwad, Marius; Skogan, Gunnar; Blatny, Janet Martha (2014)Accurate exposure assessments are needed to evaluate health hazards caused by airborne microorganisms and require air samplers that efficiently capture representative samples. This highlights the need for samplers with ... -
Complete genome sequences of six Legionella pneumophila isolates from two collocated outbreaks of legionnaires' disease in 2005 and 2008 in Sarpsborg/Fredrikstad, Norway
Dybwad, Marius; Aarskaug, Tone; Fykse, Else-Marie; Madslien, Elisabeth Henie; Blatny, Janet Martha (2016)Here, we report the complete genome sequences of Legionella pneumophila isolates from two collocated outbreaks of Legionnaires’ disease in 2005 and 2008 in Sarpsborg/Fredrikstad, Norway. One clinical and two environmental ... -
Detection of Legionella pneumophila in a biological treatment plant by co-cultivatiobn with Acanthamoeba castellanii
Fykse, Else-Marie; Aarskaug, Tone; Blatny, Janet Martha (2014)Legionella pneumophila was identified in the aeration ponds of a biological wastewater treatment plant at the pulp and paper industry Borregaard, Sarpsborg, Norway. After 3 outbreaks of Legionaires’ disease reported in ... -
Effects of a 7-days military training exercise on inflammatory biomarkers, serum hepcidin, and iron status
McClung, James P; Martini, Svein; Murphy, Nancy E; Montain, Scott J; Margolis, Lee M; Thrane, Ingjerd; Spitz, Marissa G; Blatny, Janet Martha; Young, Andrew J; Gundersen, Yngvar; Pasiakos, Stefan M (2013)Background Hepcidin, a peptide that is released into the blood in response to inflammation, prevents cellular iron export and results in declines in iron status. Elevated serum and urinary levels of hepcidin have been ... -
Evaluation of a highly discriminating multiplex multi-locus variable-number of tandem-repeats (MLVA) analysis for Vibrio cholerae
Olsen, Jaran Strand; Aarskaug, Tone; Skogan, Gunnar; Fykse, Else-Marie; Ellingsen, Anette Bauer; Blatny, Janet Martha (2009)Vibrio cholerae is the etiological agent of cholera and may be used in bioterror actions due to the easiness of its dissemination, and the public fear for acquiring the cholera disease. A simple and highly discriminating ... -
Genotyping of B. licheniformis based on a novel multi-locus sequence typing (MLST) scheme
Madslien, Elisabeth; Olsen, Jaran Strand; Granum, Per Einar; Blatny, Janet Martha (2012)Background Bacillus licheniformis has for many years been used in the industrial production of enzymes, antibiotics and detergents. However, as a producer of dormant heat-resistant endospores B. licheniformis might ... -
Identification of airborne bacteria by 16S rDNA sequencing, MALDI-TOF MS and the MIDI microbial identification system
Fykse, Else-Marie; Tjärnhage, Torbjörn; Humppi, Tarmo; Eggen, Vilde Sørvik; Ingebretsen, André; Skogan, Gunnar; Olofsson, Göran; Wästerby, Pär; Gradmark, Per-Åke; Larsson, Anders; Dybwad, Marius; Blatny, Janet Martha (2015)The aim of this study was to collect and identify airborne bacteria in Norway, Sweden and Finland and to compare three different technologies for identifying collected airborne bacterial isolates: the “gold standard” method ... -
L-alanine-induced germination in Bacillus licheniformis -the impact of native gerA sequences
Madslien, Elisabeth Henie; Granum, Per Einar; Blatny, Janet Martha; Lindback, Toril (2014)Background L-alanine, acting through the GerA receptor, was recently found to be an efficient germinant in Bacillus licheniformis ATCC14580/DSM13. Results In this study, we show that several of 46 examined B. ... -
Legionella and non-Legionella bacteria in a biological treatment plant
Fykse, Else-Marie; Aarskaug, Tone; Thrane, Ingjerd; Blatny, Janet Martha (2013)Legionella pneumophila were previously identified in the aeration ponds (up to 1010 CFU/L) of a biological wastewater treatment plant at Borregaard Ind. Ltd., Sarpsborg, Norway, and in air samples (up to 3300 CFU/m3) ... -
Rapid Identification of Bacillus anthracis Spores in Suspicious Powder Samples by Using Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS)
Dybwad, Marius; van der Laaken, AL; Blatny, Janet Martha; Paauw, Armand (2013)Rapid and reliable identification of Bacillus anthracis spores in suspicious powders is important to mitigate the safety risks and economic burdens associated with such incidents. The aim of this study was to develop and ... -
Real-time PCR and NASBA for rapid and sensitive detection of Vibrio cholerae in ballast water
Fykse, Else-Marie; Nilsen, Trine; Nielsen, Agnete Dessen; Tryland, Ingun; Delacroix, Stephanie; Blatny, Janet Martha (2012)Transport of ballast water is one major factor in the transmission of aquatic organisms, including pathogenic bacteria. The IMO-guidelines of the Convention for the Control and Management of Ships’ Ballast Water and ... -
Temporal variability of the bioaerosol background at a subway station: Concentration level, size distribution, and diversity of airborne bacteria
Dybwad, Marius; Skogan, Gunnar; Blatny, Janet Martha (2014)Naturally occurring bioaerosol environments may present a challenge to biological detection-identification-monitoring (BIODIM) systems aiming at rapid and reliable warning of bioterrorism incidents. One way to improve the ... -
Tracking airborne Legionella and Legionella pneumophila at a biological treatment plant
Blatny, Janet Martha; Reif, Bjørn Anders Pettersson; Skogan, Gunnar; Andreassen, Øyvind; Høiby, Ernst Arne; Ask, Eirik; Waagen, Viggo; Aanonsen, Dag; Aaberge, Ingeborg Aase S.; Caugant, Dominique A (2008)Biological treatment plants are frequently used to degrade organic substances in wastewater from wood refinement processes. Aeration ponds in such plants provide an optimal growth environment for many microorganisms, ...