Ebola Situation Report (17 December 2014)

In the days leading up to 14 December, there has been a total of 18,603 confirmed, probable and suspected cases of Ebola virus disease (EVD) that have been reported in five affected countries: Guinea, Liberia, Mali, Sierra Leone and the United States; and three previously affected countries: Nigeria, Senegal and Spain. There have been 6,915 reported deaths. Reported case incidence in Guinea is fluctuating and is on the decline in Liberia. In neighbouring Sierra Leone, there are signs that the increase in incidence is beginning to slow. The case fatality rate in the three intense-transmission countries remains at 70%.

Guinea

In the week leading up to 14 December, a total of 76 new confirmed cases were reported. Since September, the national trend in case reporting across Guinea has been fluctuating, with between 75 and 148 confirmed cases reported each week. World Health Organization (WHO) officials have reported that currently, there is no clear upward or downward trend in national case incidence.

Transmission remains high in the capital city of Conakry, which reported 18 confirmed cases in the week leading up to 14 December. EVD transmission remains high in the neighbouring district of Coyah, with 14 confirmed new cases. South of capital city, in Forecariah, officials have reported a surge in new cases, with 13 new confirmed cases in the past week. The district had reported its first case 12 weeks ago and until now, had reported no more than 4 confirmed cases each week.

Transmission remains persistent in the eastern district of N’Zerekore, with 6 new confirmed cases reported in the week leading up to 14 December. The district of Dubreka reported 3 confirmed cases, while new cases continue to be reported in the outbreak’s epicentre of Gueckedou (2 confirmed cases); Kerouane (5 confirmed cases) and Lola and Kouroussa (2 confirmed cases in each district). In the past week, Macenta reported only three confirmed cases, a sharp decline from the 15 cases that were reported in each of the two previous weeks. WHO officials however have warned that it remains too early to draw conclusions whether this decline in reporting in this district will be sustained. After reporting last week its first case since June, Telimele reported 5 new confirmed cases. While the districts of Kindia and Faranah did not report any new confirmed cases, officials in these two districts reported 21 and 12 probable cases respectively. The northern district of Siguiri reported 4 probable cases. This area requires continued vigilance, particularly due to its proximity to Mali.

Officials in the Guinean capital of Conakry have banned all public Christmas and New Year celebrations in a bid to curb the spread of EVD. A statement issued by Conakry governor Soriba Sorel Camara on 16 December indicated that “large-scale gatherings in public places are suspended for the moment,” adding “beaches will remain closed” and firecrackers and fireworks will also be banned. The capital city’s governor has appealed to residents to “refrain from anything” that would compromise efforts to contain the spread of Ebola. This means avoiding “all gatherings in markets, bus stations, ferry landing stages, hospital and the airport.”

Liberia

At the national level, case incidence in Liberia has been on the decline, with 6 districts reporting new confirmed or probable cases in the week leading up to 14 December.

Transmission remains intense in Montserrado, which includes the capital Monrovia. The district reported 3 confirmed cases and 9 probable cases. Grand Bassa experienced a decline in cases, reporting only one confirmed case after having reported 7 in the previous week. The other districts to report confirmed cases during this period included Bong (1 confirmed case); Grand Cape Mount (2 confirmed cases) and Marigibi (1 confirmed case). In the northern region of the country, Lofa reported no cases for the seventh consecutive week. This is likely due to the strength of response efforts being carried out across the district.

Sierra Leone

EVD transmission across Sierra Leone remains intense, with the country reporting 327 new confirmed cases in the week leading up to 14 December. While WHO officials have reported that there are signs that the increase in case incidence has slowed, and that the incidence may no longer be on the rise, the country reported the highest number of confirmed cases in epidemiological week 50.

EVD transmission remains most intense and persistent in the western and northern districts of the country. The capital city Freetown accounted for 125 of all new confirmed cases. Other western districts that reported new confirmed cases include Port Loko (56 cases); Western Rural Area (52 cases); Bombali (23 cases) and Kambia (11 cases).

In the country’s eastern region, the district of Kono, which has experienced high transmission over the past five weeks, reported 12 confirmed cases in the week leading to 14 December. The neighbouring district of Koinadugu in the northeast reported three cases. Although transmission has been intense in Tonkolili for the past three weeks, in recent weeks the number of new weekly cases has declined from a peak of 56 four weeks ago to 14 cases over the past week. In the southern region of the country, the district of Bo continues to report a high number of new cases, with 24 confirmed cases in the week leading up to 14 December. By contrast, the south-eastern districts of Kenema and Kailahun reported 1 and 3 new cases respectively. Only two districts in Sierra Leone did not report any new cases during this reporting period: Bonthe and Pujehun.

Officials in Sierra Leone have banned any public Christmas celebrations in a bid to halt the spread of EVD. According to the government’s Ebola response unit, soldiers will be deployed across the country throughout the holiday period to ensure that all residents remain indoors. Officials in Sierra Leone have also imposed a two-week lockdown on the eastern diamond-mining district of Kono. The lockdown will effectively limit residents’ movements until 23 December.

Countries with an Initial Case/Cases or with Localized Transmission

Five countries: Mali, Nigeria, Senegal, Spain and the United States of America; have reported a case or cases of EVD imported from a country with widespread and intense transmission.

In Mali, a total of 8 cases (7 confirmed and 1 probable) including 6 deaths (5 confirmed and 1 probable) have been reported. The most recent seven cases were reported in the Malian capital Bamako and are not related to the country’s first EVD case, which was reported in Kayes on 24 October. The last confirmed case tested negative for the second time on 6 December and was discharged from hospital on 11 December. All identified contacts of both the initial case and the outbreak in Bamako have now completed the 21-day-follow up. If there are no more reported cases of EVD in Mali, the West African country will be declared Ebola-free by the WHO in mid January.

In the United States, there have been four confirmed cases of EVD and 1 death. All contacts in the country have now completed the 21-day follow-up period. If no further cases are reported in the US, the country will be declared Ebola-free at the end of December.

Nigeria, Senegal and Spain have all been declared Ebola free by the WHO.