Origins of Immunization, Smallpox, & mRNA Vaccines
We’ve heard a lot about potential vaccines for COVID-19. Many vaccines have been undergoing large scale trials—specifically mRNA vaccines. This presents a new era in vaccinology. However, getting here was a long and hard process. The origins of immunization dates back thousands of years ago. In order to understand how we got here, we have to look into one of the biggest achievements in global public health—the eradication of smallpox.