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You can not get HPV from centipedes.
HPV is not in your blood.
No, once you get HPV you have it forever. You get HPV from intercourse or other skin-to-skin contact. HPV has nothing to do with smoking.
HPV is short for Human Papilloma Virus. In that sense, HPV is the nickname.
HPV stands for human papillomavirus. HPV is a virus.