The U.K. is returning very, very high number of covid positive cases. If you compare recent figures, the percentage death, with say Spain, it is illustrative.
15/10/2021
U.K. cases = 44,932 – deaths = 145 – percentage died = 0.32
Spain cases = 2,248 – deaths = 57 – percentage died = 2.53
Poland cases = 2,771 – deaths = 49 – percentage died = 1.76
Germany cases = 4,849 – deaths = 31 – percentage died = 0.64
Italy cases = 2,732 – deaths = 42 – percentage died = 1.53
Romania cases = 15,828 – deaths = 363 – percentage died = 2.29
Ukraine cases = 13,624 – deaths = 202 – percentage died = 1.48
Serbia cases = 6,424 – deaths = 50 – percentage died = 0.77
So currently the U.K. is likely testing people who are not that ill.