Who knew I'd be classed as high risk for being a fat fuck!!
I just calculated my BMI and found I wasn't as fat a fuck as I thought
But the phrasing concerns me. The link says "seriously overweight (BMI of 40 or over)" but overweight is 20-30 and obese is 30 to 40. So do they not mean "morbidly obese (BMI of 40 or over)"? 
Anyway, I now at least have a link which shows DH is officially vulnerable. I'd like to know if that list applies to children - theoretically they are less at risk, but DS classes under one of those categories.