Whole Genome Analysis Detects the Emergence of a Single Serovar Chester Clone in Japan's Kanto Region.

In Japan's Kanto region, the number of serovar Chester infections increased temporarily between 2014 and 2016. Concurrently with this temporal increase in the Kanto region, . Chester isolates belonging to one clonal group were causing repetitive outbreaks in Europe.

Evaluation of temocillin for phenotypic carbapenemase screening of Escherichia coli and Salmonella enterica isolates in relation to the presence of genes encoding ESBLs and carbapenemase production.

Background: The expression of enzymes of the OXA-48 carbapenemase group is difficult to detect by phenotypic methods owing to frequent low levels of carbapenem resistance and negative results with some screening methods. Temocillin has been shown to be a good option for phenotypic screening as it is hydrolysed by the OXA-48-group enzymes, whereas ESBLs, AmpC and some other carbapenemases have a lower hydrolytic effect on this antimicrobial. However, no epidemiological cut-off for temocillin is available.

MLVA for subsp. Serovar Dublin: Development of a Method Suitable for Inter-Laboratory Surveillance and Application in the Context of a Raw Milk Cheese Outbreak in France in 2012.

subspecies Dublin (. Dublin) figures among the most frequently isolated strains in humans in France. This serovar may affect production and animal health mainly in cattle herds with corresponding high economic losses.

Multinational outbreak of travel-related Salmonella Chester infections in Europe, summers 2014 and 2015.

Between 2014 and 2015, the European Centre for Disease Prevention and Control was informed of an increase in numbers of Salmonella enterica serotype Chester cases with travel to Morocco occurring in six European countries. Epidemiological and microbiological investigations were conducted. In addition to gathering information on the characteristics of cases from the different countries in 2014, the epidemiological investigation comprised a matched case-case study involving French patients with salmonellosis who travelled to Morocco that year.