Complete Genome Sequence of Brucella canis Strain 118, a Strain Isolated from Canine

Brucella canis infects several species of animals, and canine is the preferred host. Genome sequences of strains from different hosts are valuable for comparative analysis of host adaptation andmicroevolution. Here, we report the genome sequence of Bru-cella canis strain 118, a strain isolated from canine. Brucellosis is an important infectious zoonosis epidemic in manycountries. Brucella is the etiological pathogen of brucellosis (8). According to host preferences, Brucella is divided into six classical species, four ofwhich are pathogenic for humans.Brucella canis is the causative agent of canine brucellosis, which causes contagious abor-tion, orchiepididymitis, and uveitis (6, 7). Dogs infectedwithB. canis appear to be relatively healthy, but persistent bacteremia without fe-ver or symptoms is common (7). Symptomatic human infections are rarely reported because of the low virulence of B. canis (9). Different from other Brucella species that are highly pathogenic for humans andyield smoothcolonies,B. caniscolonies arenaturally rough,mak-ingdiagnosis ofB. canisbrucellosis difficult. Pathogenic bacteria have the capability to adapt to different environments and hosts throug