Just to head off the next obvious question.... When kids (or adults with a little more difficulty) have their tonsils removed, they never get 100% of the lymphoid tissue, even if they get the whole tonsil, which often will grow back to some extent. HPV16 is very attracted to that lymphoid tissue, and I have talked to patients that had their tonsils removed as kids, and still developed a tonsillar cancer later in life. So seeing that all kids had their tonsils out as a way to head this off, is an idea that would not work.