Well, they are a major cause of HPV. There are differents groups of STIs. On one side we have the bacterial STIs, and on the other we have the viral STIs. Hope this helps.
It would be a I'm pretty sure I found that out online
Explanation:
the answer to your question is you're probably hungry or just need to go to the bathroom
To stabilize the other elements
First question: No
Second question: Yes