quademic
A concurrent surge in cases of four different diseases or pathologies.
informal
With behavioral health issues being added to flu, COVID and RSV, the “tridemic” is now seen as a “quademic” in Rhode Island.
Where it comes from
Blend of quad- + pandemic, an allusion to the earlier COVID-19 pandemic.
Adapted from the Wiktionary entry quademic (CC BY-SA 4.0).