A novel tp0548 sequence-type of Treponema pallidum has been identified in a genital ulcer sample collected from a patient diagnosed with primary syphilis at the Hospital Universitari Vall d'Hebron in Barcelona. Following the nomenclature used in the Enhanced Centers for Disease Control and Prevention Typing methodology, letter “z” has been assigned to the new sequence type.
From the *Vall d'Hebron Research Institute (VHIR);
†Universitat Autònoma de Barcelona (UAB);
‡STI Unit Vall d'Hebron-Drassanes, Infectious Diseases Department, and
§Microbiology Department, Hospital Universitari Vall d'Hebron (HUVH), Barcelona, Spain
Correspondence: Juliana Esperalba, PharmD, Sexually Transmitted Infections Unit, Microbiology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain. E-mail: firstname.lastname@example.org.
Conflicts of Interest and Sources of Funding: None declared.
Received for publication September 4, 2018, and accepted November 4, 2018.