About the Authors

Anna Godi

Affiliation Virus Reference Department, Public Health England, London, United Kingdom

Sara L. Bissett

Affiliation Virus Reference Department, Public Health England, London, United Kingdom

Elizabeth Miller

Affiliation National Vaccine Evaluation Consortium, Public Health England, London, United Kingdom

Simon Beddows

simon.beddows@phe.gov.uk

Affiliation Virus Reference Department, Public Health England, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist. The study design of the randomized, observer-blinded immunogenicity trial of Cervarix® and Gardasil® vaccines in 12-15 year old girls and the primary serum neutralizing antibody response analysis have been reported previously (Research Ethics Committee reference: 09/H0720/25).

Author Contributions

Conceived and designed the experiments: EM SB. Performed the experiments: AG SLB. Contributed reagents/materials/analysis tools: EM SB. Wrote the paper: AG SLB EM SB.