About the Authors

Dana Sumilo

Affiliation Department of Zoology, University of Oxford, Oxford, United Kingdom

Loreta Asokliene

Affiliation Centre for Communicable Diseases Prevention and Control, Vilnius, Lithuania

Antra Bormane

Affiliation State Agency ‘Public Health Agency’, Riga, Latvia

Veera Vasilenko

Affiliation National Institute for Health Development, Tallinn, Estonia

Irina Golovljova

Affiliation National Institute for Health Development, Tallinn, Estonia

Sarah E. Randolph

To whom correspondence should be addressed. E-mail: sarah.randolph@zoo.ox.ac.uk

Affiliation Department of Zoology, University of Oxford, Oxford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SR. Analyzed the data: SR DS. Wrote the paper: SR. Other: Acquired the data from national sources and contributed considerable expertise: AB VV IG LA.