About the Authors

Ana Luísa Reis

Current address: The Pirbright Institute, Pirbright Laboratory, Pirbright, Surrey, United Kingdom

Affiliation Division of Virology, MRC National Institute for Medical Research, London, United Kingdom

John W. McCauley

john.mccauley@nimr.mrc.ac.uk

Affiliation Division of Virology, MRC National Institute for Medical Research, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exists

Author Contributions

Conceived and designed the experiments: ALR JWM. Performed the experiments: ALR. Analyzed the data: ALR JWM. Wrote the paper: ALR JWM.