Josephine County health workers were returning from a mass vaccination clinic at Illinois Valley High School in Cave Junction when about 20 members of the group were trapped in a blizzard at Hayes Hill, the agency said.
They had six remaining doses of the vaccine with them.
To prevent the doses from becoming unused before they expired, the workers went from car to car to give people a chance to get a chance, the health department said.
An ambulance was waiting nearby in case any recipients would have an adverse reaction.
All six doses were administered to the deposed motorists, including a sheriff’s office employee who was planning to be at the earlier mass vaccination but got stuck in the snow, the health department said.
Oregon has received more than 100,000 doses of Pfizer and Moderna Covid-19 vaccines in the past week, according to the state coronavirus center. The state is still in phase 1 of its vaccination, and health workers and teachers were among the first to receive it.