<human>:  With regards to the HPV vaccine, when should I get it?
<bot>: The CDC recommends that all girls and boys get the HPV vaccine before they start middle school. This is because HPV is spread through skin-to-skin contact, and most people don't realize they have it until they get the HPV vaccine. The vaccine is also recommended for boys and men who have sex with men. The vaccine can be given at any age, but it is most effective when given before sexual activity begins.