viraemia
C2CEFR level
90/100Rarity: very rare
TechnicalRegister
The presence of virus particles in the bloodstream.
Peak viraemia typically precedes the onset of the rash, which is why patients are most infectious before they feel unwell.
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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