Here are my variants charts for data published on 13 May 2021
**cumulative** chart showing significant increase in B.1.617.2 (orange bold line)
...
Here is the same data on a log chart and including B.1.1.7 (top line)
**cumulative chart**
Significant increase in B.1.617.2 (orange bold line)
And here is the data on a heatmap. Variants of concern in bold/yellow
Very significant exponential-like growth. Clearly a concern given potential move to Step 3 on Monday.
Worth comparing with other variants of concern:
(ps B.1.324.1 with E484K appears to have been removed from VUIs.)
B.1.1.7 up 35% since last week
B.1.351 up 80% since last week
P.1 up 58% since last week (relatively small numbers)
B.1.617.2 up *150%* since last week
The risk assessment for the confidence in increased transmissibility of B.1.617.2 has changed from *medium* last week (when the decision was made to move to Step 3) to *high* this week.
"It is therefore highly likely that this variant is more transmissible than B.1.1.7 (high confidence), and it is a realistic possibility that it is as much as 50% more transmissible. ...
"At the end of last year, as JCVI set out their priorities for who should be vaccinated, the first priority was to vaccinate those most at risk of dying. A secondary priority –one that can be overlooked– included the possibility of vaccinating those at increased risk of exposure.
“Since then, we now know that Covid vaccines can reduce transmission. This is great news, and together with the lockdown, cases have fallen significantly.
A quick overview thread of case rates prior to moving to Step 3 on 17 May.
Overall cases in the UK are at 21 cases per 100,000.
Case rates are higher than they were last summer after the first wave and before that unlocking.
Some of this is increase is due to mass testing.
In late June last year, cases in all age groups were under 10 cases per 100,000 (except 80+ where they were 12 per 100,000).
Cases now are higher.
If we compare to the extreme situation in January (seen below), things don't look too bad. If we compare to June last year, cases do look relatively high.
Most of these cases were related to travellers. We have since required quarantine for people that have been in India. So this should (in theory) reduce significantly the import of B.1.617.2