DETROIT – Making enough COVID-19 vaccine doses for the entire world could take years due to manufacturing challenges. They’re incredibly small, and critical to the COVID-19 vaccine rollout -- and there aren’t nearly enough of them. Whenever we reach out to our companies to ask them whether they could support manufacturing of the lipid components. For example, as soon as they hear it’s to support a COVID-19 vaccine, you know, they’re completely engaged.”Alliances are being forged in the private sector. Greenlight Biosciences, a biotech firm in Boston, has delayed the development of their mRNA vaccine candidate so they can tailor it to the newer variants of coronavirus.