Table 2.

Assumed percentage protection from the two vaccine types against the Alpha and Delta variants after one dose (D1), after two doses (D2, shown for the dose interval gaps of 12-weeks/3-weeks), and after waning (W)

	AstraZeneca						Pfizer/Moderna
Protection	Alpha			Delta			Alpha			Delta
Against	D1	D2	W	D1	D2	W	D1	D2	W	D1	D2	W
Infection	63	78/65	0	45	70/49	0	63	80/77	0	55	85/80	0
Symptoms	63	80/66	0	45	80/77	0	63	88/82	0	55	90/85	0
Hospital	80	90	70	80	95	70	80	93	70	80	97	70
Mortality	80	95	70	80	97	70	80	98	70	80	98	70
Transmission	45	45	20	30	30	20	45	45	20	30	30	20

These values correspond to relatively slow waning of vaccine protection (ω₁ = 100⁻¹ per day, ω₂ = 320⁻¹ per day, $\overline{\omega }=420^{-1}$ per day) ^{33, 34, 41}.