'''Sexually transmitted diseases''' (STDs), or '''sexually tansmitted infections''' (STIs), are [[illness]]es transmitted by sexual contact. STDs comprise a large and diverse set of disease entities which include [[virus]]es, bacteria, protozoa, and arthropods. Many of these diseases can cause great harm before symptoms are detected. | '''Sexually transmitted diseases''' (STDs), or '''sexually tansmitted infections''' (STIs), are [[illness]]es transmitted by sexual contact. STDs comprise a large and diverse set of disease entities which include [[virus]]es, bacteria, protozoa, and arthropods. Many of these diseases can cause great harm before symptoms are detected. |