The cytologic and microbiologic results from dogs in this study mirror the literature regarding M. pachydermatis carriage on the skin of normal and atopic dogs (10, 15, 29 ).
Molecular typing of CC398 strains and microbiologic results are shown in Table 2. Four strains belonged to the new ST2658, which differed from ST398 by a synonymous mutation (A→G) at position 198 of the pta gene.
Although quantitative endotracheal aspirate cultures can correctly identify patients with pneumonia, it should be borne in mind that the microbiologic results cannot be used to infer which micro-organisms present in the trachea are really present in the lungs.
Methods: This observational, retrospective, monocentric study analysed microbiologic results, clinical evolution and outcome of 176 LT, in ICU, during a 6-year period.
TT cooperated in the collection of the clinical data and in the validation of the microbiologic results.
GM cooperated in the collection of the clinical data and in the validation of the microbiologic results.
SC cooperated in the collection of the clinical data, in the validation of the microbiologic results and performed the statistical evaluation.
A central laboratory was not used in this registry and, therefore, microbiologic results and susceptibility to antibiotics could be different across the different centers.
We also did not specifically include the considerations about office efficiency and the value of immediate microbiologic results that were identified by McIsaac and colleagues as potentially important factors in determining patient management in busy office settings [ 21].
The initial empiric antimicrobial treatment was administered according to local adaptation of the American Thoracic Society/Infectious Disease Society of America guidelines [ 1], based on the most frequently isolated PPM and their patterns of antimicrobial sensitivity in our institution, and subsequently revised according to the microbiologic results.
