I have few specific questions.
1. Is it possible to catch any of STDs through blood to blood contact (needle sharing or wounds contact), as it is possible to have hepatitis or HIV transmission?
2. Does all of these STDs (Chlamydia, Syphilis, gonorrhea), always have any symptoms?
3. How possible is to get (Chlamydia, Syphilis, gonorrhea) through unprotected oral sex?