December 15, 2020 County gets extra-cold freezer from university Linfield University has donated one of the freezers from its biology lab to Yamhill County Public Health for storing the Pfizer COVID-19 vaccine when it arrives. The vaccine must be kept in ultra-cold conditions, -70 degrees Celsius, which is colder than standard freezers can achieve. “We are grateful for the wonderful partner Linfield University has been throughout the COVID-19 event and their willingness to share this much needed asset,” said County Health and Human Services Director Lindsey Manfrin in a press release. “This is one more example of our great community working together.”