Acetobacter indonesiensis Bacteremia in Child with Metachromatic Leukodystrophy

from cats, belonged to ST93 and a new ST strain, respectively. Isolates EC08 and EC09, from the patients who shared the same hospital room with the pet shop worker, were ST156 (Table). Results of pulsed-field gel electro-phoresis were consistent with multilocus sequence typing results and showed that isolates consisted of 5 typeslate EC07 was clonally related to 4 E. coli strains from dogs, according criteria described by Tenover et al. (10), suggesting possible transmission of mcr-1–harboring E. coli between dogs and the patient. Colistin resistance was successfully transferred to E. coli C600 through conjugation in all isolates, suggesting that mcr-1 was located on transferable plasmids. These findings suggest that mcr-1–producing E. coli can colonize companion animals and be transferred between companion animals and humans. The findings also suggest that, in addition to food animals and humans, companion animals can serve as a reservoir of colistin-resistant E. coli, adding another layer of complexity to the rapidly evolving epidemiology of plasmid-mediated colistin resistance in the community. Acknowledgments We sincerely thank the patients and the owners of companion animals for giving written consent for publication. et al. Emergence of plasmid-mediated colistin resistance mechanism MCR-1 in animals and human beings in China: a microbiological and molecular biological study. Roesler U, et al. Colistin resistance gene mcr-1 in extended-spectrum β-lactamase–producing and carbapenemase-producing Gram-negative bacteria in Germany. resistance gene mcr-1 harboured on a multidrug resistant plasmid.M-137, a hybrid of CTX-M-14-like and CTX-M-15–like β-lactamases identified in an Escherichia coli clinical isolate. et al. Characterization of a new metallo-beta-lactamase gene, bla NDM-1 , and a novel erythromycin esterase gene carried on a unique genetic structure in Klebsiella pneumoniae sequence type 14 from India. et al. Detection of clinically important β-lactamases in commensal Escherichia coli of human and swine origin in western China. Persing DH, et al. Interpreting chromosomal DNA restriction patterns produced by pulsed-field gel electrophoresis: criteria for bacterial strain typing. To the Editor: Acetobacter indonesiensis, first described in 2000 (1), belongs to the group of acetic acid bacteria (AAB), which includes the genera Acetobacter, Gluconobacter, Asaia, Granulibacter, and others in the family Acetobacteriaceae. AAB are of great industrial interest for use in vinegar fermentation processes because they oxidize alcohols or sugars incompletely, which leads LETTERS to acetic acid accumulation (2). AAB are widespread in nature and can be isolated from various sources, including vinegar, alcoholic beverages, tropical fruits, and flowers (1,2). AAB have rarely been associated with …