The 5:30 A.M. Warrior Call: COVID-19 Vaccine to Begin Human Trial (4/07/2020) Posted byJoe De Sena April 7, 2020 Leave a comment on The 5:30 A.M. Warrior Call: COVID-19 Vaccine to Begin Human Trial (4/07/2020) Joe De Sena’s daily conversations track the pandemic’s worldwide effects.