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Ci sono interrogativi sul numero effettivo di persone che hanno contratto il virus, magari quasi senza accorgersene o con sintomi blandi. Quanti sono? Quanto è utile saperlo? Ma soprattutto: come fare per saperlo?
Fai sentire la tua voce a Patti Chiari
Scopri la serie
https://www.rsi.ch/s/703693
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