Doctors Without Borders is best known for sending medical professionals into international conflict zones in the midst of medical crises. The organization has teams in Afghanistan, Iran, Sierra Leone, Venezuela and 66 other countries. It did not, however, have a medical presence in the U.S. — until now.

Jean Stowell, head of the organization’s U.S. COVID-19 Response Team, told CBS News that Doctors Without Borders has dispatched a team of nine to the hard-hit Navajo Nation in the southwest U.S. because of the crisis unfolding there. The team consists of two physicians, three nurse/midwives, a water sanitation specialist, two logisticians and a health promoter who specializes in community health education.