In the wake of fast-track approvals for Pfizer’s and Moderna’s respective SARS-CoV-2 vaccines, now begins the largest immunization campaign in world history. Its success will depend not only on the products’ safety and efficacy, but also on several mass-distribution programs requiring significant cold-chain infrastructure. The public has become acutely aware of the Pfizer vaccine’s demanding cryostorage specifications, generating considerable anxiety about how mass distribution will happen. Behind the scenes, however, cold-chain engineering companies such as Modality Solutions have worked alongside…