State leaders promise to speed up delivery of COVID-19 vaccine Governor Ducey's new order changes approach. and last updated 2020-12-31 19:40:00-05 PHOENIX â Lines were busy at Valley vaccination sites Thursday as some medical workers scheduled to receive their COVID 19 vaccination had to register again because of a glitch in the online sign-up. A day earlier, Arizona Health Services Director Dr. Cara Christ talked about the challenges of getting people vaccinated in the state. âThis is a monumental task that public health has,â she said. âWe do vaccinations all the time. But this is the vaccination of the entire population."