Funding for this research was provided by:
Received: 1 August 2022
Accepted: 3 March 2023
First Online: 15 March 2023
: Data are presented as anonymized, cumulative information. All strategies and investigations were part of routine surveillance and infection control activities carried out in accordance with the national recommendations for treatment of immunocompromised patients of the German legally assigned institute for infection control and prevention (Robert-Koch Institute). Informed consent was therefore not necessary.
: Not applicable.
: The authors declare that they have no competing interests.