At the end of August 2014, Sierra Leone had recorded
1,026 cumulative Ebola cases and
422.00 cumulative deaths,
with a case-fatality rate of 41%.
Figures are drawn from the WHO Situation Reports issued during the West African Ebola virus epidemic.
1,026
422.00
41%
331.00
Current Value & Context
August 2014 sits within the West African outbreak that began in March 2014
and was declared over in Sierra Leone on 7 November 2015. The cumulative count visible at the end of this
month reflects transmission across every district, with the commercial hub of Kenema and the capital Freetown
being the most heavily impacted centres.
Snapshot by indicator
| Indicator | Latest in month |
|---|---|
| Case fatality rate (CFR) of confirmed Ebola cases | 41% |
| Case fatality rate (CFR) of confirmed, probable and suspected Ebola cases | 41% |
| Case fatality rate (CFR) of probable Ebola cases | 92% |
| Case fatality rate (CFR) of suspected Ebola cases | 15% |
| Cumulative number of confirmed Ebola cases | 935.00 |
| Cumulative number of confirmed Ebola deaths | 380.00 |
| Cumulative number of confirmed, probable and suspected Ebola cases | 1,026 |
| Cumulative number of confirmed, probable and suspected Ebola deaths | 422.00 |
| Cumulative number of probable Ebola cases | 37.00 |
| Cumulative number of probable Ebola deaths | 34.00 |
| Cumulative number of suspected Ebola cases | 54.00 |
| Cumulative number of suspected Ebola deaths | 8.00 |
| Number of confirmed Ebola cases in the last 21 days | 308.00 |
| Number of confirmed Ebola deaths in the last 21 days | 35.00 |
| Number of confirmed, probable and suspected Ebola cases in the last 21 days | 331.00 |
| Number of confirmed, probable and suspected Ebola deaths in the last 21 days | 39.00 |
| Number of probable Ebola cases in the last 21 days | 4.00 |
| Number of probable Ebola deaths in the last 21 days | 2.00 |
| Number of suspected Ebola cases in the last 21 days | 19.00 |
| Number of suspected Ebola deaths in the last 21 days | 2.00 |
| Proportion of confirmed Ebola cases that are from the last 21 days | 33.00 |
| Proportion of confirmed Ebola deaths that are from the last 21 days | 9.00 |
| Proportion of confirmed, probable and suspected Ebola cases that are from the last 21 days | 32.00 |
| Proportion of confirmed, probable and suspected Ebola deaths that are from the last 21 days | 9.00 |
| Proportion of probable Ebola cases that are from the last 21 days | 11.00 |
| Proportion of probable Ebola deaths that are from the last 21 days | 6.00 |
| Proportion of suspected Ebola cases that are from the last 21 days | 35.00 |
| Proportion of suspected Ebola deaths that are from the last 21 days | 25.00 |
Historical Trajectory
Cumulative-case trajectory for Sierra Leone across the full outbreak window, with
August 2014 highlighted:
2015-05-29
2016-03-23
Geographic Context
Sierra Leone’s 16 administrative districts across four regions — the spatial frame within which transmission was tracked:
Administrative districts of the Republic of Sierra Leone. Map by NordNordWest (CC BY-SA 3.0 DE, via Wikimedia Commons).
Weekly Detail
All situation reports issued during August 2014:
| Date | Indicator | Value |
|---|---|---|
| 2014-08-29 | Case fatality rate (CFR) of confirmed Ebola cases | 41% |
| 2014-08-29 | Case fatality rate (CFR) of confirmed, probable and suspected Ebola cases | 41% |
| 2014-08-29 | Case fatality rate (CFR) of probable Ebola cases | 92% |
| 2014-08-29 | Case fatality rate (CFR) of suspected Ebola cases | 15% |
| 2014-08-29 | Cumulative number of confirmed Ebola cases | 935.00 |
| 2014-08-29 | Cumulative number of confirmed Ebola deaths | 380.00 |
| 2014-08-29 | Cumulative number of confirmed, probable and suspected Ebola cases | 1,026 |
| 2014-08-29 | Cumulative number of confirmed, probable and suspected Ebola deaths | 422.00 |
| 2014-08-29 | Cumulative number of probable Ebola cases | 37.00 |
| 2014-08-29 | Cumulative number of probable Ebola deaths | 34.00 |
| 2014-08-29 | Cumulative number of suspected Ebola cases | 54.00 |
| 2014-08-29 | Cumulative number of suspected Ebola deaths | 8.00 |
| 2014-08-29 | Number of confirmed Ebola cases in the last 21 days | 308.00 |
| 2014-08-29 | Number of confirmed Ebola deaths in the last 21 days | 35.00 |
| 2014-08-29 | Number of confirmed, probable and suspected Ebola cases in the last 21 days | 331.00 |
| 2014-08-29 | Number of confirmed, probable and suspected Ebola deaths in the last 21 days | 39.00 |
| 2014-08-29 | Number of probable Ebola cases in the last 21 days | 4.00 |
| 2014-08-29 | Number of probable Ebola deaths in the last 21 days | 2.00 |
| 2014-08-29 | Number of suspected Ebola cases in the last 21 days | 19.00 |
| 2014-08-29 | Number of suspected Ebola deaths in the last 21 days | 2.00 |
| 2014-08-29 | Proportion of confirmed Ebola cases that are from the last 21 days | 33.00 |
| 2014-08-29 | Proportion of confirmed Ebola deaths that are from the last 21 days | 9.00 |
| 2014-08-29 | Proportion of confirmed, probable and suspected Ebola cases that are from the last 21 days | 32.00 |
| 2014-08-29 | Proportion of confirmed, probable and suspected Ebola deaths that are from the last 21 days | 9.00 |
| 2014-08-29 | Proportion of probable Ebola cases that are from the last 21 days | 11.00 |
| 2014-08-29 | Proportion of probable Ebola deaths that are from the last 21 days | 6.00 |
| 2014-08-29 | Proportion of suspected Ebola cases that are from the last 21 days | 35.00 |
| 2014-08-29 | Proportion of suspected Ebola deaths that are from the last 21 days | 25.00 |
Frequently Asked Questions
How many Ebola cases had Sierra Leone recorded by the end of August 2014?
Cumulative confirmed, probable, and suspected Ebola cases totalled 1,026.
How many Ebola deaths had been reported in Sierra Leone by August 2014?
Cumulative deaths reached 422.00, implying a case-fatality rate of approximately 41%.
When did the 2014 Ebola outbreak end in Sierra Leone?
The World Health Organization declared the end of active Ebola virus transmission in Sierra Leone on 7 November 2015, after 42 consecutive days with no new confirmed cases.
Where does the Ebola data come from?
Figures are drawn from the WHO Ebola Situation Reports published between 2014 and 2016.
Source: World Health Organization (WHO) Ebola Situation Reports, 2014–2016.