Updated figures from Washington State showing vaccine breakthrough cases by the Sars-CoV-2 variant causing them up to 7th July 2021. Some changes from the previous file, notably an increase for Alpha breakthroughs, and a doubling of Delta breakthroughs from 5% to 10%.
Vaccine Breakthroughs up to 7th July 2021
7th July 2021
Variant
Lineage
Number of Vaccine
Breakthrough Cases
With Variant
Percentage of Vaccine
Breakthrough Cases With
Variant
Percentage of
Sequences From
All Covid-19
Cases With
Variant
Increase in
Number of Breakthroughs
From Previous
Week
Alpha
B.1.1.7
297
41%
44%
11
Gamma
P.1
139
19%
9%
6
Epsilon
B.1.429
113
16%
16%
0
Delta
B.1.617.2
70
10%
4%
30
Iota
B.1.526
21
3%
3%
7
Beta
B.1.351
11
2%
1%
1
Epsilon
B.1.427
11
2%
2%
0
Eta
B.1.525
4
1%
0%
0
Kappa
B.1.617.1
1
0%
0%
0
Zeta
P.2
0
0%
0%
0
Other
49
7%
20%
0
Total
716
100%
100%
55
PREVIOUS WEEK: Vaccine Breakthroughs up to 30th June 2021
30th June 2021
Variant
Lineage
Number of Vaccine
Breakthrough Cases
With Variant
Percentage of Vaccine
Breakthrough Cases With
Variant
Percentage of
Sequences From
All Covid-19
Cases With
Variant
