See: Chapter A-2 "COVID-19 and First Nations' Responses" by Aimée Craft, Deborah McGregor, and Jeffery Hewit.
Chapter D-6 "Systemic Discrimination in Government Services and Programs and Its Impact on First Nations Peoples During the COVID-19 Pandemic" by Anne Levesque and Sophie Theriault.
Developed to provide employees of the United States government with information on cultures, history, federal laws, organizations, consultations and federally recognized tribes.
Looks at historical and current data for the Dakotas, Montana, and Nebraska; of the 411 cases examined, 69% have occurred since 2000 and from 2017 through 2019 30-40 cases have been reported annually.