WHO publishes a list of the vaccine landscape here - https://www.who.int/blueprint/priority-diseases/key-action/novel-coronavirus-landscape-ncov.pdf https://www

WHO publishes a list of the vaccine landscape here - https://www.who.int/blueprint/priority-diseases/key-action/novel-coronavirus-landscape-ncov.pdf https://www.who.int/blueprint/priority-diseases/key-action/n... As of April 20 2020, there were 5 in clinical evaluation and 71 in preclinical evaluation. I'm a layperson, but very interesting to see the different techniques and testing methodologies used.