The Ebola outbreak in Congo has spread from the countryside into a city, prompting fears that the disease will be increasingly difficult to control.
Health Minister Oly Ilunga Kalenga confirmed a case in Mbandaka, a city of a million people about 130km (80 miles) from the area where the first cases were confirmed earlier this month.
The city is a major transportation hub with routes to the capital Kinshasa.
Senior World Health Organization (WHO) official Peter Salama said the outbreak’s shift to a major city meant there was the potential for an “explosive increase” in cases.
“This is a major development in the outbreak,” he told the BBC. “We have urban Ebola, which is a very different animal from rural Ebola. The potential for an explosive increase in cases is now there.”
Mr. Salama, the WHO’s Deputy Director-General of Emergency Preparedness and Response, said Mbandaka’s location on the Congo river, widely used for transportation, raised the prospect of Ebola spreading to surrounding countries such as Congo-Brazzaville and the Central African Republic as well as downstream to Kinshasa, a city of 10 million people.
The first batch of 4,000 experimental Ebola vaccines to combat the outbreak arrived in Kinshasa on Wednesday.
The Health Ministry said vaccinations would start on the weekend, the first time the vaccine would come into use since it was developed two years ago.
The vaccine, developed by Merck and sent from Europe by the World Health Organization, is still not licensed but proved effective during limited trials in West Africa in the biggest ever outbreak of Ebola, which killed 11,300 people in Guinea, Liberia and Sierra Leone from 2014-2016.
Health officials hope they can use it to contain the latest outbreak in northwest Democratic Republic of Congo which the WHO believes has so far killed 20 people since April.
