Company building drive-thru COVID vaccination site in Montco, while waiting for vaccine supply Building a Montgomery County COVID vaccination site in the hope to help more people get vaccinated Hank Flynn details a company building a car-based vaccination site, even while they aren't sure they will be needed KING OF PRUSSIA, Pa. - Just outside the King of Prussia Mall, construction is taking place. The company doing the job is hoping to get COVID-19 vaccines and they hope that if they get approved, they will play a role in helping more people get vaccinated. "The car-based model is extremely efficient and, frankly, in some cases, a lot safer for the patient. So, I really believe it could be used as the backbone of the nation’s vaccine strategy," said 15 to Know CEO Mike Dershowitz.