Hi Alan,
What worries the most that are still a lot of regulars endlessly helping out here day after day, and i just hope they are not being bombarded with viruses. – I mean if most of us do not get those warnings , does it just mean our system did not detect them and we could be in for a nasty surprise??
If you're well protected I don't think you've much to worry about. Though 100% protection is non-existent.
If you have your AV up (and never down), don't ignore warnings, keep your data anywhere but local and be alert, you should be fine.