Funding for this research was provided by:
Received: 17 February 2022
Accepted: 13 April 2022
First Online: 29 April 2022
: The need for ethics approval was waived by the ethics committee, Albert Ludwigs University of Freiburg, Freiburg, Germany. All patients and their guardians gave oral and written consent for VIT and participation in the study. VIT was carried out according to national guidelines and anaphylaxis was treated according to national guidelines.
: All patients and their guardians gave oral and written informed consent for VIT and publication of the study.
: The authors have no competing interests to report.