Pick any STI

What type of STI did you pick is it (a virus, bacteria or fungi or other) explain what this means. Is it treatable or curable etc…
Please do research and provide statistics on your sexually transmitted infection in the United States(1 location is sufficient).
How is it spread? and what can you do to prevent the spread?
What are the symptoms? 
How is it treated or cured?
Lastly, make sure to provide a reputable website that you retrieved your information from.