The Karolinska Institute in Stockholm (Sweden) today awarded the Nobel Prize in Physiology or Medicine to Katalin Karikó and Drew Weissman for the covid vaccine based on messenger RNA. Hungarian biochemist Katalin Karikó spent 40 years working in the shadows and developing key advances for Moderna and BioNTech injections. Drew Weissman worked with Karikó and made therapies based on messenger RNA possible. The Pfizer or Moderna vaccines incorporate it and would not exist without its vision. With Karikó, there are 13 women who have received the Nobel Prize in Medicine.