The Ebola outbreak in eastern Congo is now the fastest-growing one in history and new challenges keep emerging.

The 38-year-old community nurse is the only public-health worker in his district of more than 40,000 people, where an outbreak of Ebola has been spreading. Every day he sees patients who are feverish or vomiting.

The number of women dying in childbirth has doubled in the region at the centre of the Ebola outbreak as expectant mothers avoid hospitals, the United Nations Population Fund (UNFPA) has said.

The Trump administration on Monday said it is blocking American citizens in the Democratic Republic of Congo from traveling to ​the U.S. on commercial flights, according to a White House official.

WHO has warned that the true scale of the outbreak may be two to four times larger than the reported number of confirmed cases.

The Oxford University trial raises hopes that the spread of the Bundibugyo strain may be halted before it becomes the biggest-ever Ebola outbreak.

The first clinical trial is under way of an antiviral drug's effectiveness in people exposed to the deadly Ebola strain spreading in the Democratic Republic of Congo, the WHO said Tuesday.