March 17, 2020. A clinical trial of investigational vaccine for COVID-19 has begun. Phase 1 clinical trial evaluating an investigational vaccine designed to protect against coronavirus disease 2019 (COVID-19) has begun at Kaiser Permanente Washington Health Research Institute (KPWHRI) in Seattle. Currently (March 17, 2020) no approved vaccines exist to prevent infection with SARS-CoV-2.
Link to article: https://www.nih.gov/news-events/news-releases/nih-clinical-trial-investigational-vaccine-covid-19-begins