CDC STI Treatment Guidelines App:

https://www.cdc.gov/std/treatment-guidelines/provider-resources.htm

CDC Division of STD Prevention:

cdc.gov/std/default.html

CDC Atlas Plus:

https://www.cdc.gov/nchhstp/atlas/index.htm

https://www.cdc.gov/nchhstp/atlas/syphilis/index.html

CDC STD Surveillance Report:

https://www.cdc.gov/std/stats18/default.htm

National STD Curriculum:

www.std.uw.edu

National Network of STD Prevention Training Centers: 

www.nnptc.org