The Department of Health and Human Services has announced that 35 hospitals in the United States are equipped, staffed and trained to handle Ebola patients.

The treatment centers, including four in Northern California, have 53 beds available for patients and have been assessed by the Centers for Disease Control’s Rapid Ebola Preparedness team.

“As long as Ebola is spreading in West Africa, we must prepare for the possibility of additional cases in the United States,” the CDC’s director, Dr. Thomas Frieden, said in a statement.