1 Division of STD Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA. Electronic address: nkv3@cdc.gov.
2 Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Disease, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA.
3 Division of STD Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA.
4 South Cove Community Health Center, Boston, MA, USA.
5 Massachusetts Department of Public Health, Bureau of Infectious Diseases and Laboratory Sciences, Boston, MA, USA.
6 Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.