About the Authors

Anke L. Stuurman

Roles Formal analysis, Investigation, Methodology, Writing – original draft


Affiliation P95 Epidemiology and Pharmacovigilance, Leuven, Belgium

Caterina Rizzo

Roles Methodology, Writing – review & editing

Affiliation ECDC National Focal Point for Influenza and Other Respiratory Viruses Program, Bambino Gesù Children’s Hospital, Rome, Italy

Mendel Haag

Roles Conceptualization, Investigation, Methodology, Writing – review & editing

Affiliation Seqirus, Amsterdam, The Netherlands

Competing Interests

MH is an employee of Seqirus. AS is an employee of P95 Epidemiology and Pharmacovigilance. This does not alter our adherence to PLOS ONE policies on sharing data and materials.