U.K. Technical Briefing 21
Age bracketed, full Delta variant data
Under 50 years of age
Distribution of Delta variant cases
58.93% = unvaccinated (178,240 unvaccinated cases out of 302,437 total cases)
. 8.59% = <21 days after 1st dose (25,965 / 302,437)
19.07% = 21+ days after 1st dose (57,668 / 302,437)
13.41% = 14+ days after 2nd dose (40,544 / 302,437)
Emergency care visit (exclusive) rate
4.20% = unvaccinated (7,479 EC visits out of 178,240 unvaccinated cases)
3.41% = <21 days after 1st dose (886 / 25,965)
2.74% = 21+ days after 1st dose (1,581 / 57,688)
2.86% = 14+ days after 2nd dose (1,161 / 40,544)
Emergency care visit requiring an overnight stay (exclusive) rate
1.03% = unvaccinated (1,840 EC visits out of 178,240 unvaccinated cases)
0.55% = <21 days after 1st dose (144 / 25,965)
0.46% = 21+ days after 1st dose (267 / 57,688)
0.61% = 14+ days after 2nd dose (246 / 40,544)
Fatality rate
0.04% = unvaccinated (72 deaths out of 178,240 unvaccinated cases)
0.02% = <21 days after 1st dose (144 / 25,965)
0.01% = 21+ days after 1st dose (267 / 57,688)
0.07% = 14+ days after 2nd dose (246 / 40,544)
50 years of age or older
Distribution of Delta variant cases
11.11% = unvaccinated (4,891 unvaccinated cases out of 44,022 total cases)
. 0.52% = <21 days after 1st dose (228 / 44,022)
13.80% = 21+ days after 1st dose (6,075 / 44,022)
74.57% = 14+ days after 2nd dose (32,828 / 44,022)
Emergency care visit (exclusive) rate
15.13% = unvaccinated (740 EC visits out of 4,891 unvaccinated cases)
. 8.33% = <21 days after 1st dose (19 / 228)
. 6.12% = 21+ days after 1st dose (372 / 6,075)
. 5.49% = 14+ days after 2nd dose (1,803 / 32,828)
Emergency care visit requiring an overnight stay (exclusive) rate
8.79% = unvaccinated (430 EC visits out of 4,891 unvaccinated cases)
5.70% = <21 days after 1st dose (13 / 228)
2.45% = 21+ days after 1st dose (149 / 6,075)
3.02% = 14+ days after 2nd dose (990 / 32,828)
Fatality rate
6.50% = unvaccinated (318 EC visits out of 4,891 unvaccinated cases)
3.51% = <21 days after 1st dose (8 / 228)
1.40% = 21+ days after 1st dose (85 / 6,075)
1.99% = 14+ days after 2nd dose (652 / 32,828)
Data source (See Table 5 on pages 22-23 of the report PDF)