I read the news about this vaccine when it first came out and thought it sounded wonderful. I have never asked if it was implemented but may ask in a month or two. I picked up on what it was for just from reading the news that such a vaccine had been developed and wasn't worried back then that the entire medical establishment was prepared to lie about just about anything and everything. After all, I had family who were medical doctors and I trusted them.
Nowadays its a trust that is largely dead and buried. The entire medical community lied through their teeth about masking, social distancing, the ineffectiveness of drugs to treat the Covid symptoms and just about everything related to the bat flu from China. I don't trust any of them about anything anymore.
Pretty sad. Once the trust is gone, it rarely, if ever, comes back.