This is not an anti-immigration thread, not at all; I believe that the UK is richer and better for its tolerance, openness, and diversity.
However, has anyone noticed that there are far more varieties of 'bugs' around in recent years? Not necessarily serious but just different; for example, me, my husband and DDs have recently been laid low with a bug which involves not only high temperature, coughing etc, but also hands shaking severely, The combination of symptoms just seems to be more varied and sometimes more extreme.
Perhaps it's a sign of age, but I swear that there were far fewer types of bug around in my youth. Basically, you got a cold and it might take up to five days to shake off, but you knew what you were dealing with. Now, the almost random symptoms, eg a bug which resulted in severe headaches, can be a source of worry because it is not known and familiar.
In the past, the colonisation of various countries led to numerous deaths from 'white men's diseases', against which there was no natural immunity. We are now better equipped to treat diseases than in the past, but I do wonder if we are more exposed to a wider variety and/or different strains of bugs and diseases.
Perhaps ultimately we will just all be a lot more resistant to diseases as we develop new antibodies and immunities to these new threats?