1/ The Kaiser Permanente @aboutKP data (see tweet below) has now been published.
Vaccine effectiveness of 2 doses of Pfizer COVID vaccine.
On the left: VE vs infection drops over time
On the right: VE vs hospitalization holds steady over time
thelancet.com/journals/lance…
Vaccine effectiveness of 2 doses of Pfizer COVID vaccine.
On the left: VE vs infection drops over time
On the right: VE vs hospitalization holds steady over time
thelancet.com/journals/lance…
https://twitter.com/celinegounder/status/1430276685677608969
2/ Vaccine effectiveness of 2 doses of Pfizer COVID vaccine VERSUS INFECTION:
- all 12+: 88% in 1st month after vaxx➡️47% after 5 months
- among 65+: 80% in 1st month after vaxx➡️43% after 5 months
- all 12+: 88% in 1st month after vaxx➡️47% after 5 months
- among 65+: 80% in 1st month after vaxx➡️43% after 5 months
3/ Vaccine effectiveness of 2 doses of Pfizer COVID vaccine VERSUS HOSPITALIZATION:
- all 12+: VE vs hospitalization 87% in 1st month after vaxx➡️88% at 5 months
NO WANING OF PROTECTION AGAINST HOSPITALIZATION.
- all 12+: VE vs hospitalization 87% in 1st month after vaxx➡️88% at 5 months
NO WANING OF PROTECTION AGAINST HOSPITALIZATION.
4/ Vaccine effectiveness of 2 doses of Pfizer COVID vaccine VERSUS INFECTION was lower for Delta variant (75%) than for other variants (91%).
At 1 month:
93% vs Delta at 1 month
97% vs other variants
At 4 months:
53% vs Delta
67% vs other variants
Similar rate of decline.
At 1 month:
93% vs Delta at 1 month
97% vs other variants
At 4 months:
53% vs Delta
67% vs other variants
Similar rate of decline.
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