reassortment
C2CEFR level
90/100Rarity: very rare
TechnicalRegister
The exchange of genome segments between related viruses co-infecting a cell.
Genetic reassortment between avian and human influenza strains can generate a pandemic virus.
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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