46% of study participants in the Pfizer trials had comorbidities: https://www.fda.gov/media/144245/download (page 20).
It’s been tested on them. It works.
Thanks for all your postings. I was definitely going to pass on the vaccine, but after reading your reports, I’m about 50/50. Being over 70 with comorbidities (wife and I) we will approach this with a more opened mind.