A5029139884- Botulinum Toxin and Related Neurological Disorders
- Yersinia bacterium, plague, ectoparasites research
- Listeria monocytogenes in Food Safety
- Clostridium difficile and Clostridium perfringens research
- Microbial Inactivation Methods
- Meat and Animal Product Quality
- Probiotics and Fermented Foods
- Food Safety and Hygiene
- Streptococcal Infections and Treatments
- Essential Oils and Antimicrobial Activity
- Zoonotic diseases and public health
- Diphtheria, Corynebacterium, and Tetanus
- Microbial Metabolism and Applications
- Salmonella and Campylobacter epidemiology
- Identification and Quantification in Food
- Pharmacological Effects of Natural Compounds
- Neurological disorders and treatments
- Hereditary Neurological Disorders
- Bacillus and Francisella bacterial research
- Spectroscopy and Chemometric Analyses
- Bacterial Identification and Susceptibility Testing
- Bee Products Chemical Analysis
- Animal Disease Management and Epidemiology
- Research in Social Sciences
- Gut microbiota and health
University of Helsinki
2015-2024
Ministère de la Santé et de l'Hygiène Publique
2000-2018
University of Iowa
2017
Ministry of Economic Affairs and Employment
2007
Quadram Institute
2006
Ludwig-Maximilians-Universität München
1997-2003
Ministry of Agriculture and Forestry
1987-1991
Finnish National Agency for Education
1988
VTT Technical Research Centre of Finland
1985
National Consumer Research Centre
1985
Sites of Listeria monocytogenes contamination in a cold-smoked rainbow trout (Oncorhynchus mykiss) processing plant were detected by sampling the production line, environment, and fish at different stages. Two lots monitored. The frequency raw samples containing L. was low. During processing, contaminated with clearly rose after brining, most sites brining postbrining areas. A total 303 isolates from fish, product, environment characterized pulsed-field gel electrophoresis (PFGE). PFGE...
A taxonomic study was conducted to clarify the relationships of two bacterial populations belonging genus Weissella. total 39 strains originating mainly from Malaysian foods (22 strains) and clinical samples humans (9 animals (6 were analysed using a polyphasic approach. The methods included classical phenotyping, whole-cell protein electrophoresis, 16S 23S rDNA RFLP (ribotyping), determination sequence homologies DNA-DNA reassociation levels. Based on results, considered represent different...
ABSTRACT Febrile gastroenteritis in five healthy persons was associated with the consumption of vacuum-packed cold-smoked rainbow trout containing Listeria monocytogenes. L. monocytogenes isolates from incriminated fish product lot and stool samples were all serotype 1/2a indistinguishable by pulsed-field gel electrophoresis employing Asc I Sma I.
In February 1999, an outbreak of listeriosis caused by Listeria monocytogenes serotype 3a occurred in Finland. All isolates were identical. The strain was first isolated 1997 dairy butter. This began delivery to a tertiary care hospital (TCH) June 1998. From 1998 April 25 case patients identified (20 with sepsis, 4 meningitis, and 1 abscess; 6 died). Patients the more likely have been admitted TCH than other strains L. (60% vs. 8%; odds ratio, 17.3; 95% confidence interval, 2.8-136.8). Case...
Summary L isteria monocytogenes is ubiquitously prevalent in natural environments and transmitted via the food chain to animals humans, whom it can cause life‐threatening diseases. We used M ultilocus S equence T yping ( MLST ) of ∼2000 isolates . investigate whether specific associations existed between clonal complexes CCs environment versus diseased hosts. Most (72%) were not for any single source, many have been isolated from environment, products, as well humans. Our results confirm...
ABSTRACT Botulism is diagnosed by detecting botulinum neurotoxin and Clostridium cells in the patient suspected food samples. In this study, a multiplex PCR assay for detection of types A, B, E, F fecal material was developed. The method employs four new primer pairs with equal melting temperatures, each being specific to gene type or F, enables simultaneous serotypes. A total 43 C. strains 18 other bacterial species were tested. DNA amplification fragments 782 bp alone, 205 B 389 E 543...
The vehicles and sources of Yersinia pseudotuberculosis infection are unknown. In Finland, clinical microbiology laboratories routinely report Y. isolations submit isolates for serotype analysis. October 1998, the number O:3 infections increased markedly.
Lactic acid bacteria (LAB) associated with gaseous spoilage of modified-atmosphere-packaged, raw, tomato-marinated broiler meat strips were identified on the basis a restriction fragment length polymorphism (RFLP) (ribotyping) database containing DNAs coding for 16S and 23S rRNAs (rDNAs). A mixed LAB population dominated by Leuconostoc species resembling gelidum caused product. Lactobacillus sakei, curvatus, gram-positive rod phenotypically similar to heterofermentative other main organisms...
Yersinia enterocolitica 4/O : 3 is the most frequent cause of sporadic human yersiniosis in Finland and Germany. To investigate possible link between pigs humans, 282 534 porcine strains from Germany were characterized with PFGE using NotI, ApaI XhoI enzymes. Most (>80 %) indistinguishable both countries genotypes (178/182) different The among together indicate that are an important source countries.