IPA: /ˌsuːpərɪnˈfɛkʃən/
KK: /ˌsuːpərɪnˈfɛkʃən/
A type of infection that occurs after another infection, often caused by germs that are resistant to the antibiotics used for the first infection.
The patient developed a superinfection after the initial treatment failed to eliminate the bacteria.
Superinfection → It is formed from "super-" (meaning above or over) and "infection" (from Latin "infectio", meaning to taint or stain). The word refers to an infection that occurs on top of an existing infection, hence the idea of being 'above' or 'over' another infection.
Think of an infection that is 'over' or 'above' another one — 'super-' means above, and 'infection' refers to the tainting or staining caused by pathogens.