Pfizer vaccine, a third dose may not be necessary but could be useful against Covid variants. To tell Sky TG24 Valeria Marino, medical director of Pfizer Italia, guest of ‘Buongiorno’ this morning. “We have data that demonstrate immune coverage at six months, we have to observe the next six months. A third dose may be possible but perhaps not necessary, unless – he explains – any variations occur, in that case a ‘booster dose ‘ it might be useful”. Read also
