Why Do We Still Lack a COVID-19 Vaccine? Searching for the Missing Pieces

According to a recent newspaper report, two Israeli companies, namely MigVax Corp. and the Israel Institute for Biological Research in Ness Ziona, have made progress on their own coronavirus vaccines (28 July, 2020; https://www.jpost.com/health-science/coronavirus-vaccine-whatprotection-might-be-available-to-israelis-soon-636639). They are on the front line in this field because they had already developed an in-house vaccine to fight a coronavirus infection that appeared 4 years ago, causing tracheobronchitis in poultry (www.migal.org.il/7010). As the chicken coronavirus exhibits a high homology (80%) with severe acute respiratory syndrome" (SARS) coronavirus-2 (SARS-CoV-2) https://www.migal.org.il/en/coronavirus-vaccine-project, responsible for the current pandemic in humans, the chicken vaccine might also work in humans with a few modifications (www.jpost.com/HEALTH-SCIENCE)