Table 3. Vaccine Effectiveness against Delta Variant–Related Death among Persons in England Who Received Two Doses of the ChAdOx1-S or BNT162b2 Vaccine, According to Weeks since Receipt of the Second Dose.

Vaccine and Age Group	Vaccine Effectiveness (95% CI)
	2–9 Wk	10–14 Wk	15–19 Wk	≥20 Wk
	percent
ChAdOx1-S
≥16 Yr	95.0 (93.1–96.4)	93.7 (91.8–95.2)	90.1 (86.9–92.6)	84.8 (76.2–90.3)
≥65 Yr	94.1 (89.6–96.7)	92.9 (89.5–95.2)	87.9 (82.6–91.5)	82.1 (70.1–89.3)
BNT162b2
≥16 Yr	98.5 (96.5–99.3)	96.0 (94.2–97.2)	94.5 (92.5–96.0)	91.9 (88.5–94.3)
≥65 Yr	97.1 (91.7–99.0)	95.1 (92.1–96.9)	93.2 (90.1–95.4)	90.2 (85.3–93.5)