Chapter 18a of the Green Book states that HPV vaccines can be given at the same time as other vaccines such as Td/ IPV, MMR and hepatitis B. A trend of lower anti-HPV titres has been observed when Gardasil® is administered concomitantly with dTaP, dT/IPV and dTaP/IPV vaccines, though the clinical significance of this observation is unclear. The vaccines should be given at a separate site, preferably in a different limb (≥2.5cm apart if the same limb is used). The site at which each vaccine was given should be noted in the individual’s records.