In my opinion you should ask what has happened in the last two years and more with Covid, which is a bacteriological warfare weapon released by a Chinese worker by mistake, which has infected the entire world population, many have died and the survivors are been infected to varying degrees and it is clear that not only in the UK are there many sick people as a result of this disaster in all countries.
So nothing surprising if you look at these statistics about this largest bacteriological accident in human history.