contact tracing
A2CEFR level
15/100Rarity: common
TechnicalRegister
The identification and follow-up of people who may have been exposed to an infected individual.
Public-health teams began contact tracing for everyone on the affected ward.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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