1. Department of Biomedicine, Aarhus University, Aarhus, Denmark (P.B., M.V.S., A.Q.R., J.L.)
2. Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark (H.V.O.)
3. Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (S.J., M.J.).