This Sept. 2020 photo provided by Johnson & Johnson shows a scientist in Janssen laboratory in Leiden, The Netherlands. Johnson & Johnson said Friday, Jan. 29, 2021 that in the U.S. and seven other countries, the first single-shot vaccine appears 66% effective overall at preventing moderate to severe COVID-19. More: Henry Ford to carry out phase 3 of COVID-19 vaccine trial in Metro DetroitThat trial showed that the single-shot version of the vaccine was 85% effective overall in preventing severe disease and complete protection against COVID-19 related hospitalization and death. It was 65% effective overall in preventing moderate to severe COVID-19. Anyone interested in volunteering may sign up at this link on the Henry Ford website.