What do we call our ongoing relationship with influenza? Low-level epidemic with occasional high-level…

What do we call our ongoing relationship with influenza? Low-level epidemic with occasional high-level outbreaks? It's not endemic, except in a lazy dictionary meaning sort of way. Is that the target with 'hybrid immunity' for Covid? @Globalbiosec https://t.co/I6fBDfM4tI https://t.co/wh9eRN9JP5