//Every 100 years Bobb, we were due for a pandemic, hence the exercise 4 yeras ago. Again, please do some homework,?//
Yes, your making full use of hindsight.
Maybe every 100 years on average for apandemic ( tho that seems far too high, more like 40-50 looking at Hong Kong flue and Spanish flue) ) but its only a guide- could be 20 years or 120 before the next, certainly cant predict it to within a few years.
Should we really spend 10s of billions of pounds every year on stock's of masks, gloves etc knowing most will get outofdate before there needed so will get thrown out .