Search

Your search keyword '"Giannini, Petra"' showing total 16 results
Start Over Author "Giannini, Petra"
16 results on '"Giannini, Petra"'

2. Control of Raw Pork Liver Sausage Production Can Reduce the Prevalence of HEV Infection

Author

Ripellino, Paolo, primary, Pianezzi, Enea, additional, Martinetti, Gladys, additional, Zehnder, Cinzia, additional, Mathis, Barbara, additional, Giannini, Petra, additional, Forrer, Nicola, additional, Merlani, Giorgio, additional, Dalton, Harry R., additional, Petrini, Orlando, additional, Bihl, Florian, additional, Fontana, Stefano, additional, and Gobbi, Claudio, additional

Published
2021
Full Text
View/download PDF

3. Local outbreak of Listeria monocytogenes serotype 4b sequence type 6 due to contaminated meat pâté

Author

Althaus, Denise, Jermini, Marco, Giannini, Petra, Martinetti, Gladys, Reinholz, Danuta, Nüesch-Inderbinen, Magdalena, Lehner, Angelika, Stephan, Roger, University of Zurich, and Stephan, Roger

Subjects
outbreak, sequence type 6, 2404 Microbiology, 570 Life sciences, biology, 2402 Applied Microbiology and Biotechnology, pâté, 610 Medicine & health, 1103 Animal Science and Zoology, Listeria monocytogenes, 10082 Institute of Food Safety and Hygiene, 1106 Food Science
Published
2017
Full Text
View/download PDF

8. New subcluster of HEV genotype 3 strains linked to the first confirmed Swiss case of foodborne hepatitis E infection

Author

Bachofen, Claudia; https://orcid.org/0000-0002-0799-8083, Kubacki, Jakub; https://orcid.org/0000-0001-7085-3533, Jermini, Marco, Giannini, Petra, Martinetti, G, Ripellino, Paolo, Bernasconi, E, Fraefel, Cornel; https://orcid.org/0000-0001-7221-6706, Stephan, Roger; https://orcid.org/0000-0003-1002-4762, Bachofen, Claudia; https://orcid.org/0000-0002-0799-8083, Kubacki, Jakub; https://orcid.org/0000-0001-7085-3533, Jermini, Marco, Giannini, Petra, Martinetti, G, Ripellino, Paolo, Bernasconi, E, Fraefel, Cornel; https://orcid.org/0000-0001-7221-6706, and Stephan, Roger; https://orcid.org/0000-0003-1002-4762

Abstract

We describe the first confirmed foodborne Hepatitis E virus (HEV) infection in Switzerland linked to the consumption of a raw sausage (“mortadella di fegato cruda” type) containing pig liver and the appearance of a new “Swiss” subcluster of genotype 3 HEV strains.

Published
2017

9. Complete genome sequences of two Swiss Hepatitis E virus isolates from human stool and raw pork sausage

Author

Kubacki, Jakub, Fraefel, Cornel, Jermini, Marco, Giannini, Petra, Martinetti, Gladys, Ripellino, Paolo, Bernasconi, Enos, Sidler, Xaver, Stephan, Roger; https://orcid.org/0000-0003-1002-4762, Bachofen, Claudia, Kubacki, Jakub, Fraefel, Cornel, Jermini, Marco, Giannini, Petra, Martinetti, Gladys, Ripellino, Paolo, Bernasconi, Enos, Sidler, Xaver, Stephan, Roger; https://orcid.org/0000-0003-1002-4762, and Bachofen, Claudia

Abstract

We present here the full-length genome sequences of two hepatitis E virus genotype 3 (HEV-3) isolates from a human stool sample from a patient with acute hepatitis and a raw sausage containing pig liver. Sequence analysis implies that Swiss HEV isolates may form a novel subgroup of HEV-3 viruses.

Published
2017

10. Further evidence for Staphylococcal food poisoning outbreaks caused by egc-encoded enterotoxins

Author

Johler, Sophia; https://orcid.org/0000-0003-4299-5651, Giannini, Petra, Jermini, Marco, Hummerjohann, Jörg, Baumgartner, Andreas, Stephan, Roger; https://orcid.org/0000-0003-1002-4762, Johler, Sophia; https://orcid.org/0000-0003-4299-5651, Giannini, Petra, Jermini, Marco, Hummerjohann, Jörg, Baumgartner, Andreas, and Stephan, Roger; https://orcid.org/0000-0003-1002-4762

Abstract

Staphylococcal food poisoning represents the most prevalent foodborne intoxication worldwide. It is caused by oral intake of enterotoxins preformed by Staphylococcus aureus in food. The relevance of newly described enterotoxins in outbreaks of staphylococcal food poisoning is controversially discussed. Although the staphylococcal enterotoxins SEG, SEI, SEM, SEN, and SEO elicit emesis in a monkey feeding assay, there has been no conclusive proof of their emetic activity in humans. In this study, we provide further evidence suggesting that one of these enterotoxins or a combination of SEG, SEI, SEM, SEN, and SEO cause staphylococcal food poisoning. We investigated two outbreaks registered with the Swiss Federal Office of Public Health, in which only Staphylococcus aureus strains harboring the egc cluster, including seg, sei, sem, sen, and seo linked to typical signs of staphylococcal food poisoning were isolated. The outbreaks were caused by consumption of raw goat cheese and semi-hard goat cheese, and were linked to strains assigned to CC45 (agr type I) and CC9 (agr type II), respectively. These outbreaks provide further evidence that newly-described staphylococcal enterotoxins are likely to cause staphylococcal food poisoning in humans.

Published
2015

12. Local Outbreak of Listeria monocytogenesSerotype 4b Sequence Type 6 Due to Contaminated Meat Pâté

Author

Althaus, Denise, Jermini, Marco, Giannini, Petra, Martinetti, Gladys, Reinholz, Danuta, Nüesch-Inderbinen, Magdalena, Lehner, Angelika, and Stephan, Roger

Abstract

AbstractIn January and February 2016, five cases of confirmed and two cases of probable infection due to Listeria monocytogenesserotype 4b, sequence type (ST) 6 belonging to a single pulsed-field gel electrophoresis pulsotype pattern were registered in a region of southern Switzerland. L. monocytogeneswas detected in blood samples (four cases) and pleural fluid (one case). Furthermore, L. monocytogenes4b ST6 was detected in a stool sample of an asymptomatic person exposed to a common food. Forthwith, the food safety authority and a local gourmet meat producer reported L. monocytogenescontamination of meat pâté. Analysis of further food and environmental samples from the premises of the producer yielded isolates matching the clinical strains and confirmed the presence of L. monocytogenes4b ST6 in the mincing machine as the cause of the food contamination.

Published
2017
Full Text
View/download PDF

15. DNA methylation patterns at the IGF2-H19 locus in sperm of Swiss Landrace and Swiss Large White boars.

Author

Giannini, Petra and Braunschweig, Martin

Subjects
*DNA, *METHYLATION, *LANDRACE swine, *BOARS, *NUCLEOTIDES
Abstract

DNA methylation patterns at the IGF2-H19 locus were investigated in sperm DNA from Swiss Landrace (SL) and Swiss Large White (LW) boars. The putative IGF2 differentially methylated regions (DMR) 0, 1 and 2, a quantitative trait nucleotide (QTN) region in the intron 3 and a CpG island in the intron 4 of the IGF2 gene as well as three regions around porcine CTCF binding sites within the H19 differentially methylated domain (DMD) were selected for the DNA methylation analysis. In both breeds putative IGF2 DMR0, 1, 2 and H19 DMD were hypermethylated. Significant differences in DNA methylation content were found between the two breeds in the two DMD regions proximal to the H19 gene. The IGF2 QTN region and the CpG island in the IGF2 intron 4 were hypomethylated in sperm DNA of both breeds. The methylation analysis revealed significantly more methylated CpG sites in the intron 4 of sperm from the LW breed than in that from SL. No difference was found in global DNA methylation between the two breeds. These results indicate differences in DNA methylation patterns between breeds and it remains to be established whether variation in DNA methylation patterns impacts on phenotypic traits. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

16. Local Outbreak of Listeria monocytogenes Serotype 4b Sequence Type 6 Due to Contaminated Meat Pâté.

Author

Althaus D, Jermini M, Giannini P, Martinetti G, Reinholz D, Nüesch-Inderbinen M, Lehner A, and Stephan R

Subjects
Aged, Aged, 80 and over, Electrophoresis, Gel, Pulsed-Field, Feces microbiology, Female, Food Contamination analysis, Food Microbiology, Foodborne Diseases diagnosis, Humans, Listeria monocytogenes classification, Listeriosis diagnosis, Male, Multilocus Sequence Typing, Serotyping, Switzerland, Disease Outbreaks, Foodborne Diseases epidemiology, Listeria monocytogenes isolation & purification, Listeriosis epidemiology, Meat Products microbiology
Abstract

In January and February 2016, five cases of confirmed and two cases of probable infection due to Listeria monocytogenes serotype 4b, sequence type (ST) 6 belonging to a single pulsed-field gel electrophoresis pulsotype pattern were registered in a region of southern Switzerland. L. monocytogenes was detected in blood samples (four cases) and pleural fluid (one case). Furthermore, L. monocytogenes 4b ST6 was detected in a stool sample of an asymptomatic person exposed to a common food. Forthwith, the food safety authority and a local gourmet meat producer reported L. monocytogenes contamination of meat pâté. Analysis of further food and environmental samples from the premises of the producer yielded isolates matching the clinical strains and confirmed the presence of L. monocytogenes 4b ST6 in the mincing machine as the cause of the food contamination.

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results