Haemophilus ducreyi DNA

STIs (sexually transmitted infections) or sexually transmitted diseases (STDs) are infections that are passed from one person to another through sexual contact. STIs are usually spread during vaginal, oral, or anal sex. But sometimes, they can spread through other sexual contact involving the penis, vagina, mouth, or anus.

STI tests are used to find out if you have been infected with an STI. Testing can help you get the treatment you need and may help prevent the spread of infection.