The World Health Organization warns the Democratic Republic of the Congo faces a “catastrophic collision” of disease and conflict, as cases of the deadly Ebola virus spread across eastern provinces plagued by war. On Wednesday, Uganda closed its border with the DRC as health officials reported the number of confirmed Ebola cases passed 1,000. Meanwhile, the U.S. Centers for Disease Control and Prevention has asked staff members to volunteer to screen passengers arriving on flights from Congo and Uganda for signs of illness. The request follows sweeping cuts to the CDC and the National Institutes of Health, which have seen thousands of workers laid off during Trump’s second term. The U.S. has also formalized its withdrawal from the World Health Organization and gutted USAID programs providing food, water, healthcare, sanitation and disease surveillance to countries including the DRC.