has function has role immunizes against disease immunizes recipient immunizes against pathogen Human papillomavirus infectious disease Human papillomavirus Homo sapiens FDA licensed vaccine role USA licensed human vaccine preventive vaccine function prophylactic vaccine L1 protein, Human papillomavirus vaccine L1 protein, Human papillomavirus type 18 Vaccine vaccine http://purl.bioontology.org/ontology/RXNORM/798266 529114 L1 protein, human papillomavirus type 18 vaccine 798266 Khadeejah Khan Oliver He licensed human papillomavirus vaccine