So those that travelled back to the UK from SA were confirmed as having omicron when they tested positive but obviously those people and their contacts didnt know. They then got in touch with them to find out their movements which is why last week they were asking anyone who was in that friend chicken shop in Essex between a certain time were to isolate because one of the contacts had been on there and had tested positive.
As it spread, any contacts to those positive areas and people were being asked to isolate for 10 days regardless of vaccine status to try and prevent it spreading further. They also looked at areas that had sudden spiked increases of positive cases and worked from that too.
We dont have any in the area and no reported cases so it's not here yet
Brilliantly explained, thank you!
That makes perfect sense with tracing the initial people that were in contact with confirmed cases travellers.
As more and more people test positive though there seems no definite way of telling if its Omicron or Delta as Delta is still our main variant.
If they're actually able to tell the difference then fine, but if it's only done by tracing back that still doesn't seem accurate because you're basing it all on people's recollection.
I couldn't tell you all the places I've been a week ago accurately