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The qualified presumption of safety assessment and its role in EFSA risk evaluations: 15 years past.

Herman L, Chemaly M, Cocconcelli PS, Fernandez P, Klein G, Peixe L, Prieto M, Querol A, Suarez JE, Sundh I, Vlak J, Correia S.

FEMS Microbiol Lett. 2019 Jan 1;366(1). doi: 10.1093/femsle/fny260.


Influence of lauric acid on the susceptibility of chickens to an experimental Campylobacter jejuni colonisation.

Hankel J, Popp J, Meemken D, Zeiger K, Beyerbach M, Taube V, Klein G, Visscher C.

PLoS One. 2018 Sep 27;13(9):e0204483. doi: 10.1371/journal.pone.0204483. eCollection 2018.


Inactivation of Salmonella Typhimurium and Listeria monocytogenes on ham with nonthermal atmospheric pressure plasma.

Lis KA, Boulaaba A, Binder S, Li Y, Kehrenberg C, Zimmermann JL, Klein G, Ahlfeld B.

PLoS One. 2018 May 24;13(5):e0197773. doi: 10.1371/journal.pone.0197773. eCollection 2018.


Susceptibility of Methicillin-Resistant and -Susceptible Staphylococcus aureus Isolates of Various Clonal Lineages from Germany to Eight Biocides.

Kernberger-Fischer IA, Krischek C, Strommenger B, Fiegen U, Beyerbach M, Kreienbrock L, Klein G, Kehrenberg C.

Appl Environ Microbiol. 2018 Jun 18;84(13). pii: e00799-18. doi: 10.1128/AEM.00799-18. Print 2018 Jul 1.


Genomic characterization of malonate positive Cronobacter sakazakii serotype O:2, sequence type 64 strains, isolated from clinical, food, and environment samples.

Gopinath GR, Chase HR, Gangiredla J, Eshwar A, Jang H, Patel I, Negrete F, Finkelstein S, Park E, Chung T, Yoo Y, Woo J, Lee Y, Park J, Choi H, Jeong S, Jun S, Kim M, Lee C, Jeong H, Fanning S, Stephan R, Iversen C, Reich F, Klein G, Lehner A, Tall BD.

Gut Pathog. 2018 Mar 10;10:11. doi: 10.1186/s13099-018-0238-9. eCollection 2018.


The safety and quality of pork and poultry meat imports for the common European market received at border inspection post Hamburg Harbour between 2014 and 2015.

Jansen W, Woudstra S, Müller A, Grabowski N, Schoo G, Gerulat B, Klein G, Kehrenberg C.

PLoS One. 2018 Feb 9;13(2):e0192550. doi: 10.1371/journal.pone.0192550. eCollection 2018.


Prevalence and characterization of extended-spectrum β-lactamase (ESBL) and AmpC β-lactamase producing Enterobacteriaceae in fresh pork meat at processing level in Germany.

Schill F, Abdulmawjood A, Klein G, Reich F.

Int J Food Microbiol. 2017 Sep 18;257:58-66. doi: 10.1016/j.ijfoodmicro.2017.06.010. Epub 2017 Jun 15.


Implementation of a Risk-Orientated Hygiene Analysis for the Control of Salmonella JAVA in the Broiler Production.

Kloska F, Casteel M, Kump FW, Klein G.

Curr Microbiol. 2017 Mar;74(3):356-364. doi: 10.1007/s00284-017-1199-9. Epub 2017 Jan 31.


Infection Dynamics and Antimicrobial Resistance Profile of Salmonella Paratyphi B d-tartrate Positive (Java) in a Persistently Infected Broiler Barn.

Kloska F, Beyerbach M, Klein G.

Int J Environ Res Public Health. 2017 Jan 21;14(1). pii: E101. doi: 10.3390/ijerph14010101.


Arcanobacterium wilhelmae sp. nov., isolated from the genital tract of a rhinoceros (Rhinoceros unicornis).

Sammra O, Rau J, Wickhorst JP, Alssahen M, Hassan AA, Lämmler C, Kämpfer P, Glaeser SP, Busse HJ, Kleinhagauer T, Knauf-Witzens T, Prenger-Berninghoff E, Abdulmawjood A, Klein G.

Int J Syst Evol Microbiol. 2017 Jul;67(7):2093-2097. doi: 10.1099/ijsem.0.001784. Epub 2017 Jul 5.


Antimicrobial susceptibility and genetic characterization of Escherichia coli recovered from frozen game meat.

Mateus-Vargas RH, Atanassova V, Reich F, Klein G.

Food Microbiol. 2017 May;63:164-169. doi: 10.1016/ Epub 2016 Nov 26.


Hepatitis E Virus in Wild Boars and Spillover Infection in Red and Roe Deer, Germany, 2013-2015.

Anheyer-Behmenburg HE, Szabo K, Schotte U, Binder A, Klein G, Johne R.

Emerg Infect Dis. 2017 Jan;23(1):130-133. doi: 10.3201/eid2301.161169.


Variety of Antimicrobial Resistances and Virulence Factors in Staphylococcus aureus Isolates from Meat Products Legally and Illegally Introduced to Germany.

Müller A, Seinige D, Jansen W, Klein G, Ehricht R, Monecke S, Kehrenberg C.

PLoS One. 2016 Dec 9;11(12):e0167864. doi: 10.1371/journal.pone.0167864. eCollection 2016.


Microbiology of processed edible insect products - Results of a preliminary survey.

Grabowski NT, Klein G.

Int J Food Microbiol. 2017 Feb 21;243:103-107. doi: 10.1016/j.ijfoodmicro.2016.11.005. Epub 2016 Nov 9.


Towards a Standardized Method for Broth Microdilution Susceptibility Testing of Haemophilus parasuis.

Prüller S, Turni C, Blackall PJ, Beyerbach M, Klein G, Kreienbrock L, Strutzberg-Minder K, Kaspar H, Meemken D, Kehrenberg C.

J Clin Microbiol. 2016 Dec 28;55(1):264-273. doi: 10.1128/JCM.01403-16. Print 2017 Jan.


Potential role of real-time PCR for detecting Mycobacterium avium subsp. paratuberculosis in chronically diseased milking cows: a case control study.

Alajmi A, Klein G, Greiner M, Grabowski NT, Fohler S, Campe A, Scheu T, Hoedemaker M, Abdulmawjood A.

Berl Munch Tierarztl Wochenschr. 2016 Jul-Aug;129(7-8):304-9.


Evaluation of a Commercial Real-Time PCR Kit for the Detection of Mycobacterium avium subspecies paratuberculosis in Milk.

Alajmi A, Klein G, Grabowski NT, Fohler S, Akineden Ö, Abdulmawjood A.

Curr Microbiol. 2016 Nov;73(5):668-675. doi: 10.1007/s00284-016-1109-6. Epub 2016 Aug 9.


Detection of a Novel qnrB19-Carrying Plasmid Variant Mediating Decreased Fluoroquinolone Susceptibility in Salmonella enterica Serovar Hadar.

Fiegen U, Klein G, de Jong A, Kehrenberg C.

Microb Drug Resist. 2017 Apr;23(3):280-284. doi: 10.1089/mdr.2016.0067. Epub 2016 Jul 12.


Association between the ambient temperature and the occurrence of human Salmonella and Campylobacter infections.

Yun J, Greiner M, Höller C, Messelhäusser U, Rampp A, Klein G.

Sci Rep. 2016 Jun 21;6:28442. doi: 10.1038/srep28442.


Low temperature cooking of pork meat - Physicochemical and sensory aspects.

Becker A, Boulaaba A, Pingen S, Krischek C, Klein G.

Meat Sci. 2016 Aug;118:82-8. doi: 10.1016/j.meatsci.2016.03.026. Epub 2016 Mar 29.


High pressure as an alternative processing step for ham production.

Pingen S, Sudhaus N, Becker A, Krischek C, Klein G.

Meat Sci. 2016 Aug;118:22-7. doi: 10.1016/j.meatsci.2016.03.014. Epub 2016 Mar 18.


The Quantity and Quality of Illegally Imported Products of Animal Origin in Personal Consignments into the European Union Seized at Two German Airports between 2010 And 2014.

Jansen W, Merkle M, Daun A, Flor M, Grabowski NT, Klein G.

PLoS One. 2016 Feb 22;11(2):e0150023. doi: 10.1371/journal.pone.0150023. eCollection 2016.


Detection of hepatitis E virus RNA in raw sausages and liver sausages from retail in Germany using an optimized method.

Szabo K, Trojnar E, Anheyer-Behmenburg H, Binder A, Schotte U, Ellerbroek L, Klein G, Johne R.

Int J Food Microbiol. 2015 Dec 23;215:149-56. doi: 10.1016/j.ijfoodmicro.2015.09.013. Epub 2015 Sep 21.


Arcanobacterium pinnipediorum sp. nov., isolated from a harbour seal.

Sammra O, Balbutskaya A, Ülbegi-Mohyla H, Nagib S, Lämmler C, Kämpfer P, Glaeser SP, Golke J, Busse HJ, Prenger-Berninghoff E, Siebert U, Abdulmawjood A, Klein G.

Int J Syst Evol Microbiol. 2015 Dec;65(12):4539-43. doi: 10.1099/ijsem.0.000609. Epub 2015 Sep 14.


Antimicrobial Susceptibility of Bordetella bronchiseptica Isolates from Swine and Companion Animals and Detection of Resistance Genes.

Prüller S, Rensch U, Meemken D, Kaspar H, Kopp PA, Klein G, Kehrenberg C.

PLoS One. 2015 Aug 14;10(8):e0135703. doi: 10.1371/journal.pone.0135703. eCollection 2015.


Low temperature, long time treatment of porcine M. longissimus thoracis et lumborum in a combi steamer under commercial conditions.

Becker A, Boulaaba A, Pingen S, Röhner A, Klein G.

Meat Sci. 2015 Dec;110:230-5. doi: 10.1016/j.meatsci.2015.07.024. Epub 2015 Aug 1.


Recommendation for a Standardised Method of Broth Microdilution Susceptibility Testing for Porcine Bordetella bronchiseptica.

Prüller S, Frömke C, Kaspar H, Klein G, Kreienbrock L, Kehrenberg C.

PLoS One. 2015 Apr 24;10(4):e0123883. doi: 10.1371/journal.pone.0123883. eCollection 2015.


Occurrence of Clostridium botulinum neurotoxin in chronic disease of dairy cows.

Seyboldt C, Discher S, Jordan E, Neubauer H, Jensen KC, Campe A, Kreienbrock L, Scheu T, Wichern A, Gundling F, DoDuc P, Fohler S, Abdulmawjood A, Klein G, Hoedemaker M.

Vet Microbiol. 2015 Jun 12;177(3-4):398-402. doi: 10.1016/j.vetmic.2015.03.012. Epub 2015 Mar 21.


Mitigation strategies for Campylobacter spp. in broiler at pre-harvest and harvest level.

Klein G, Jansen W, Kittler S, Reich F.

Berl Munch Tierarztl Wochenschr. 2015 Mar-Apr;128(3-4):132-40.


Comparative study of the effects of citral on the growth and injury of Listeria innocua and Listeria monocytogenes cells.

Silva-Angulo AB, Zanini SF, Rosenthal A, Rodrigo D, Klein G, Martínez A.

PLoS One. 2015 Feb 2;10(2):e0114026. doi: 10.1371/journal.pone.0114026. eCollection 2015.


Inactivation of a foodborne norovirus outbreak strain with nonthermal atmospheric pressure plasma.

Ahlfeld B, Li Y, Boulaaba A, Binder A, Schotte U, Zimmermann JL, Morfill G, Klein G.

MBio. 2015 Jan 13;6(1). pii: e02300-14. doi: 10.1128/mBio.02300-14.


Effects of fibrinopurulent polyserositis in broilers on post-harvest microbiological parameters relevant to public health of broiler meat.

Jansen W, Reich F, Klein G.

Curr Microbiol. 2015 May;70(5):631-6. doi: 10.1007/s00284-014-0768-4. Epub 2015 Jan 6.


The status of the species Bacillus aerophilus and Bacillus stratosphericus. Request for an Opinion.

Branquinho R, Klein G, Kämpfer P, Peixe LV.

Int J Syst Evol Microbiol. 2015 Mar;65(Pt 3):1101. doi: 10.1099/ijs.0.000004. Epub 2014 Dec 5.


Influencing factors and applicability of the viability EMA-qPCR for a detection and quantification of Campylobacter cells from water samples.

Seinige D, von Köckritz-Blickwede M, Krischek C, Klein G, Kehrenberg C.

PLoS One. 2014 Nov 20;9(11):e113812. doi: 10.1371/journal.pone.0113812. eCollection 2014.


Bacillus invictae sp. nov., isolated from a health product.

Branquinho R, Sousa C, Osório H, Meirinhos-Soares L, Lopes J, Carriço JA, Busse HJ, Abdulmawjood A, Klein G, Kämpfer P, Pintado ME, Peixe LV.

Int J Syst Evol Microbiol. 2014 Nov;64(Pt 11):3867-76. doi: 10.1099/ijs.0.067850-0. Epub 2014 Aug 29.


Salmonella enterica serovar Typhimurium multidrug efflux pumps EmrAB and AcrEF support the major efflux system AcrAB in decreased susceptibility to triclosan.

Rensch U, Nishino K, Klein G, Kehrenberg C.

Int J Antimicrob Agents. 2014 Aug;44(2):179-80. doi: 10.1016/j.ijantimicag.2014.04.015. Epub 2014 Jun 12. No abstract available.


Colonisation of a phage susceptible Campylobacter jejuni population in two phage positive broiler flocks.

Kittler S, Fischer S, Abdulmawjood A, Glünder G, Klein G.

PLoS One. 2014 Apr 14;9(4):e94782. doi: 10.1371/journal.pone.0094782. eCollection 2014.


Comparative analysis and limitations of ethidium monoazide and propidium monoazide treatments for the differentiation of viable and nonviable campylobacter cells.

Seinige D, Krischek C, Klein G, Kehrenberg C.

Appl Environ Microbiol. 2014 Apr;80(7):2186-92. doi: 10.1128/AEM.03962-13. Epub 2014 Jan 31.


Influence of modified atmosphere packaging on meat quality parameters of turkey breast muscles.

Blacha I, Krischek C, Klein G.

J Food Prot. 2014 Jan;77(1):127-32. doi: 10.4315/0362-028X.JFP-13-242.


Enumeration of salmonellae in table eggs, pasteurized egg products, and egg-containing dishes by using quantitative real-time PCR.

Jakociune D, Pasquali F, da Silva CS, Löfström C, Hoorfar J, Klein G, Manfreda G, Olsen JE.

Appl Environ Microbiol. 2014 Mar;80(5):1616-22. doi: 10.1128/AEM.03360-13. Epub 2013 Dec 20.


Impact of a single phage and a phage cocktail application in broilers on reduction of Campylobacter jejuni and development of resistance.

Fischer S, Kittler S, Klein G, Glünder G.

PLoS One. 2013 Oct 21;8(10):e78543. doi: 10.1371/journal.pone.0078543. eCollection 2013.


Effect of bacteriophage application on Campylobacter jejuni loads in commercial broiler flocks.

Kittler S, Fischer S, Abdulmawjood A, Glünder G, Klein G.

Appl Environ Microbiol. 2013 Dec;79(23):7525-33. doi: 10.1128/AEM.02703-13. Epub 2013 Sep 27.


Prevalence of Mycobacterium avium in slaughter pigs based on serological monitoring results and bacteriological validation.

Hiller A, Oorburg D, Wisselink HJ, van Solt-Smits CB, Urlings B, Klein G, Althoff GS, Heres L.

Int J Environ Res Public Health. 2013 Aug 30;10(9):4027-38. doi: 10.3390/ijerph10094027.


Extended-spectrum β-lactamase- and AmpC-producing enterobacteria in healthy broiler chickens, Germany.

Reich F, Atanassova V, Klein G.

Emerg Infect Dis. 2013 Aug;19(8):1253-9. doi: 10.3201/eid1908.120879.


Proteomics as a Quality Control Tool of Pharmaceutical Probiotic Bacterial Lysate Products.

Klein G, Schanstra JP, Hoffmann J, Mischak H, Siwy J, Zimmermann K.

PLoS One. 2013 Jun 19;8(6):e66682. doi: 10.1371/journal.pone.0066682. Print 2013.


European and German food legislation facing uncommon foodstuffs.

Grabowski NT, Klein G, López AM.

Crit Rev Food Sci Nutr. 2013;53(8):787-800. doi: 10.1080/10408398.2011.560977. Review.


Effect of pulsed electric fields on microbial inactivation and physico-chemical properties of whole porcine blood.

Boulaaba A, Egen N, Klein G.

Food Sci Technol Int. 2014 Apr;20(3):215-25. doi: 10.1177/1082013213482475. Epub 2013 Jun 10.


Viability of microencapsulated probiotic lactobacilli during storage at different temperatures.

Jähne J, Bonaparte C, Kühne M, Klein G.

Berl Munch Tierarztl Wochenschr. 2013 Jan-Feb;126(1-2):10-5.


Microplate-test for the rapid determination of bacteriophage-susceptibility of Campylobacter isolates-development and validation.

Fischer S, Kittler S, Klein G, Glünder G.

PLoS One. 2013;8(1):e53899. doi: 10.1371/journal.pone.0053899. Epub 2013 Jan 17.

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