infectiousness
simple past tense and past participle of spiral
An action or instance of alteration or disappearance of inconvenient or embarrassing documents, photographs, transcripts, or other records.
The state or condition of being infectious.
plural of covidiot
ウイルスの感染性は、症状が現れる直前に最も高まり、封じ込めを困難にした。
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