Possibly so. They have been talking about booster shots since before they were released. My initial thoughts, however, is that given the massive failure that mRNA vaccines have been for the last 15 years that these latest concoctions are designed to be as I said “weak brew” so as to not immediately kill off humans the way the previous attempts at various mRNA type vaccines killed the rabbits, rats, monkeys etc they were tested on. Just a wild guess on my part, but do find it suspicious that after 15 years of failure they “suddenly and miraculously” started working for Covid-19.
I've seen this claim made, but I've never seen any documentation of any of the trials where an mRNA vaccine killed rabbits, rats, monkeys, and other animals. Could you please provide links to these trials where the animals all died after receiving an mRNA vaccine candidate?