However, Dr. Mark Escott, Austin-Travis County interim health authority, said broader distribution of the vaccine could be on the horizon with the approval of a new vaccine manufactured by Johnson & Johnson and Janssen Pharmaceuticals. Johnson & Johnson published the results of its Phase 3 clinical trials Jan. 29, announcing a 72% protection rate in United States trials once 28 days have elapsed since vaccination. Within 50 days, protection rises to 100%, Escott said. “There are lots of benefits to this vaccine in terms of the public health response,” he said. “Primarily, it's a single dose, which makes it a lot easier to get people effectively vaccinated, and it only requires refrigeration, so it makes it easier to get out.”