Final answer:
Escherichia and Staphylococcus are usually associated with UTIs related to sexual activity.
Step-by-step explanation:
Urinary tract infections (UTIs) can be caused by various organisms, but when it comes to UTIs related to sexual activity, the most commonly associated genera are 1) Escherichia and Staphylococcus. Infections caused by Escherichia coli often result from fecal contamination and are more common in women. Staphylococcus can also be a causative agent in UTIs.