HPV nonavalent vaccine (Gardasil-9) clinical trials

Persistence of Immune Response Six Years After One Dose of 9vHPV Vaccine Among Male and Female Students

This study looks at how well a single dose of the HPV vaccine protects young people six years later. Researchers want to see if the protection against HPV, a common virus, lasts long-term in students who got one dose when they were in primary school.