The US Centers for Disease Control and Prevention (CDC) has confirmed that a second US citizen working in the Democratic Republic of the Congo tested positive for Ebola this week, as the virus continues to spread across Central Africa. The case comes amid what is described as a record outbreak in the region, prompting heightened concern among US health authorities about the disease's trajectory and the risk to Americans working in affected areas.

In response to the outbreak, US officials have expanded precautionary measures, including enhanced airport screening for travellers arriving from the affected region. The report notes that this is the second such case involving a US citizen in the DRC, though further specific details about the infected individuals, their condition and treatment were not fully available in the article text provided.