There is a lot of talk about which vaccination to use and how effective they are..., so I am going to propose something that probably does the best job!
Pfizer and Moderna had an efficacy rate of 95% but Pfizer needs to be stored at a ridiculously low temperature while Moderna just needs to be stored in a normal refrigerator! (Both need 2 shots for full efficacy. Advantage Moderna..., because of refrigeration method!)
Johnson & Johnson can be stored in a refrigerator and only needs ONE-SHOT! (Efficacy rate 70%)
But:
Moderna has an efficacy rate of 80% with the FIRST shot!
SO:
Give ONE shot of the Moderna in large population centers..., and save the Johnson & Johnson for more isolated areas! (Since it is OK to administer for 3 full months unlike one month for modern!)
Then:
Jab away!