Russia and India Report also notes that..
According to the rules, pilgrims should be no older than 65 years of age and no younger than 12 years of age.
According to my list and among those with details available:
- 53% of MERS-CoV cases and 65% of deaths are older than 55-years
- 74% of cases and 57% of deaths are 65-years or younger
- 2 cases and 1 death are under 12-years of age
I'd say the rules miss a large proportion of the populations most at risk of poor clinical outcomes.
