4 Pfizer says vaccine 100 percent effective in kids 12 to 15 (thehill.com) posted 15 days ago by RedHawk44 15 days ago by RedHawk44 +4 / -0 6 comments share 6 comments share save hide report block hide child comments Comments (6) sorted by: top new old worst You're viewing a single comment thread. View all comments, or full comment thread. ▲ 2 ▼ – Beer-_-Belly 2 points 15 days ago +2 / -0 Define "effective" permalink save report block reply
Define "effective"