Salmonella serovars isolated for the first time in Poland, 1995–2007

Abstract

Objectives: Almost each year, a few Salmonella serovars isolated for the first time are noted in Poland. Each such serovar should be regarded as potentially dangerous. Recognition of them and monitoring their occurrence and frequency of distribution in all sources is important to control salmonellosis, and is one of the roles of the National Salmonella Centre. Materials and Methods: Over 2000 Salmonella strains submitted to the National Salmonella Centre for reference identification were examined. All of them were isolated in Poland between 1995−2007 from human and non-human sources. They were serotyped and characterized biochemically according to standard techniques. The antigenic factors were identified by means of good-quality Salmonella specific rabbit antisera. The White-Kauffmann-Le Minor scheme was used to name the serovars. Results: One hundred and forty-five serovars were recognized. Fifty-two of them appeared for the first time in Poland. One serovar was found to be the new one. Its validation was done at the WHO Collaborating Centre for Reference and Research on Salmonella (Institut Pasteur, Paris, France). It will be included in the next (10th) edition of the White-Kauffmann-Le Minor scheme. Conclusions: Salmonella will continue to be the feature of humans, animals and the general environment. For practical purposes, we have to accept that Salmonella will not be eliminated and we must address our efforts to its controlling. Measuring trends in Salmonella serovars over time ought to be done to provide information about the efficacy of prevention and control measures. Results of this study are significant for these activities. They have also allowed to update the list of Salmonella serovars isolated in Poland during the last fifty years (1957−2007) which is presented as well.

Prevalence and Fimbrial Genotype Distribution of Poultry Salmonella Isolates in China (2006 to 2012)

“…We found that the prevalence of Salmonella serovars from five species of poultry were different, and the main serovars were S. Pullorum (chicken), S. Enteritidis (duck), S. Typhimurium (goose), S. Typhimurium (pigeon), and S. Saintpaul (turkey). Other studies indicated that the prevalent serovars of Salmonella were usually correlated with a specific species or region (25,26). The host specificity was not observed in this study since the serovars of S. Typhimurium, S. Enteritidis, S. Heidelberg, and S. Kentucky were isolated from nearly all of these five poultry species.…”

Genomic characterization of Salmonella Uzaramo for human invasive infection

“…Previous studies have reported that fresh edible leaves and cold-blooded animals were reservoirs for S. Uzaramo [36]. Only a few cases of human infection caused by S. Uzaramo have been reported in the USA and Poland [18, 36], but these lacked clear clinical descriptions. The invasive syndrome observed might also be a result of an immunological condition or medical history of the particular patient, i.e.…”

“… Salmonella consists of an array of diverse serovars, affecting a wide range of cold- and warm-blooded animals, including humans. Previous studies have reported that fresh edible leaves and cold-blooded animals were reservoirs for S. Uzaramo [ 36 ]. Only a few cases of human infection caused by S. Uzaramo have been reported in the USA and Poland [ 18, 36 ], but these lacked clear clinical descriptions.…”

Assessment and Comparison of Molecular Subtyping and Characterization Methods for Salmonella

“…Conventional serotyping (White–Kauffmann–Le minor scheme) has been used as a Salmonella subtyping method for >80 years ( Salmonella Subcommittee of the Nomenclature Committee of the International Society for, Microbiology, 1934; Grimont and Weill, 2007; Guibourdenche et al, 2010; Dera-Tomaszewska, 2012; Shi et al, 2015) and has been a certified approach for public health monitoring of Salmonella infections for over 50 years (CDC, 2015). This method classifies the genus Salmonella into serovars (also known as “serotypes”) based on surface antigens including somatic (O), flagellar (H), and capsular (Vi) antigens (Brenner et al, 2000).…”