Meaning
Simultaneous infection by two pathogens (a pair of copathogens), any combination of viruses and/or bacteria; often one infection is a secondary bacterial infection that gets its opportunity from the effects of the (viral or bacterial) first one.
Etymology
Origin: Unknown
From co- + infection.
NYT Puzzle Appearances
No published puzzle dates on file for this word yet. It is part of the official NYT Spelling Bee word list for 2022, 2025.