Vaccine efficacy

Reflecting their baseless antagonism towards COVID vaccines, the state's legislature, governor, and attorney general have made decisions that will have deadly consequences for many Texans.
In this radio interview with John Batchelor, our conversation includes (1) the approval of the latest COVID vaccines; and (2) the problem – especially for people in some occupations – with testing for the presence of marijuana and other drugs.
Our first two vaccines have greater than 90% efficacy; Novavax reports 89.3%, Johnson and Johnson’s reports 66%. Should we care? What do those numbers mean to you and me when we worry about the protection the vaccine affords us?