Antivaxx means anti-Pfascist./ Provaxx means pro-Pfascist....
If I could offer a suggestion
Change antivaxx/provaxx to anticovidvaxx /procovidvaxx
I don’t think most folks here are against properly tested vaccines, but are understandably cautious with novel, not fully tested ones.
Understood, but these days not a lot of folks are debating the polio vaccine.
;-)