My stomach can’t tolerate zinc supplements. Sorry to say. But as for the mutations, my understanding was that current vaccine development was focused toward a “base” or foundation of sorts that can be reengineered toward future mutations. It’s been several months since I read that so I can’t provide the link, or I would.
Similar to the flu vaccine....which I also get every year. :)
You probably get plenty of Zinc in your food. But getting it INTO the cells can be the trick. Coffee does it. So does HCQ, and a lot of other foods. Just google it.
RNA really hates zinc, and the feeling is mutual.