Final answer:
The sexually transmitted diseases that have a known cure are A. Chlamydia and Gonorrhea since they are caused by bacteria which can be treated and eradicated using antibiotics. Viral STIs, on the other hand, such as genital herpes, hepatitis B, and HIV/AIDS, have no cure but can sometimes be prevented with vaccines.
Step-by-step explanation:
The group of sexually transmitted diseases that have a known cure includes A. Chlamydia and Gonorrhea. These are both bacterial STIs, and bacterial STIs can usually be cured with antibiotics. However, it's important to note that viral STIs, such as genital herpes, hepatitis B, and HIV/AIDS, cannot be cured. Some viral infections can be prevented with vaccines, like the HPV vaccine which can prevent certain strains of the virus that cause genital warts and cervical cancer, but once contracted, these viral infections are lifelong. Examples of viral STIs include genital herpes, hepatitis B, HSV (causing Genital warts), and HIV/AIDS. Understanding the difference between bacterial and viral STIs is pivotal when it comes to treatment, as antibiotics will not be effective against viral infections, and as such, they do not have a 'cure'.