We are grateful to Jennifer Dow and Karsten Tedin for critical reading of the manuscript.

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“Bacillus cereus is an important foodborne pathogen causing diarrhoea, emesis and in, rare cases, lethal poisonings. The emetic syndrome is caused by cereulide, a heat-stable toxin. Originally considered as a rather homogenous group, the emetic strains have since been shown to display some diversity, including the existence of two clusters of mesophilic B. cereus and psychrotolerant B. weihenstephanensis. Using pulsed-field gel electrophoresis (PFGE) analysis, this research aimed to better understand the diversity and spatio-temporal occurrence of emetic strains originating from environmental or food niches vs. those isolated from foodborne Y27632 cases. The diversity was evaluated using a set of 52 B. cereus and B. weihenstephanensis strains isolated between 2000 and 2011 in ten

countries. PFGE analysis could discriminate 17 distinct profiles (pulsotypes). The most striking observations were as follows: (1) more than one emetic pulsotype can be observed in a single outbreak; (2) the number of distinct isolates involved in emetic intoxications is limited, and these potentially clonal strains frequently occurred in successive and independent food poisoning cases; (3) isolates from different countries displayed identical profiles; and (4) the cereulide-producing psychrotolerant B. weihenstephanensis learn more were, so far, only isolated from environmental niches. “
“In the paper by Park et al. (2013), the following errors appeared. In the legend of Figure 2, the following error was published on page 4. Left bar stands for extracellular and right bar stands for intracellular at each time point The text was incorrect and should have read: Left bar stands for LT2 recovery without P22 and right bar stands for 3-oxoacyl-(acyl-carrier-protein) reductase LT2 recovery with P22 at each time point On page 4, the following error was published. By the first 8 h after inoculation, no significant differences in intracellular

recoveries of LT2 occurred between 4 and 8 h, while almost all intracellular cells of LT2 were eliminated at 16 h The text was incorrect and should have read: By the first 8 h after inoculation, no significant differences in both extra- and intracellular recoveries of LT2 occurred between 4 and 8 h, while almost all LT2 cells were eliminated at 16 h On page 5, the following error was published. The phage utilized in this study was able to initiate killing of extra and intracellular S. Typhimurium within a few minutes after infection and completed bacterial lysis within 16 h. The text was incorrect and should have read: The phage utilized in this study was able to initiate killing of extra and intracellular S. Typhimurium within a few hours after infection and completed bacterial lysis within 16 h. We apologize for this error. “
“Legionella pneumophila is a Gram-negative, facultative intracellular pathogen and the causative agent of Legionnaires’ disease, a severe pneumonia in humans.