The 150,000 households in Oregon that received postcards asking them to participate in Oregon Health Sciences University’s “Key to Oregon” study of COVID-19 will be receiving follow up letters with details during the next week.  Study lead and OHSU-Portland State University School of Public Health Dean Dr. David Bangsberg says the goal is to develop a better understanding of how many Oregonians are infected with the coronavirus, where infections are and how the virus spreads.  He explains study volunteers will be asked to take their temperature and do a short symptom survey on a daily basis.  OHSU is looking for 100,000 people who have received the postcards to volunteer for the study.