The story seems so incredible, not sure what to think of it. It was reported by the national broadcaster here already in May 2020 [1]. Would appreciate some medical professional opinion.
I thought on first skim perhaps they were leaving out the difficulty of manufacturing mRNA vaccines in volume (there's a classic popular trope, especially with respect to medicine for some reason, of invention being 99% of getting something to market.
However from what limited info is in the article it appears to be something quite easy to manufacture on existing infrastructure.
Article is about adenovirus vaccine, not mRNA vaccine.