| Country | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Congo (Brazzaville) | 1.32 | 2.81 | 7.64 | 4.09 | 0.55 | |||||||||||||||||||||||
| Congo (Kinshasa) | 1.14 | 1.09 | 1.05 | 1.00 | 0.96 | 0.92 | 0.87 | 0.83 | 0.79 | 0.74 | 0.70 | 0.66 | 0.61 | 0.04 | 0.05 | 0.06 | 0.07 | 0.08 | 0.11 | 0.13 | 0.09 | 0.05 | 0.01 | |||||
| Gabon | 3.53 | 1.99 | 10.56 | 1.11 | 1.89 | 2.66 | 3.44 | 4.21 | 4.13 | |||||||||||||||||||
| Guinea | 0.02 | 31.14 | 14.69 | 0.09 | ||||||||||||||||||||||||
| Liberia | 154.98 | 61.29 | 0.04 | |||||||||||||||||||||||||
| Mali | 0.03 | |||||||||||||||||||||||||||
| Nigeria | 0.00 | |||||||||||||||||||||||||||
| Sierra Leone | 72.54 | 32.44 | 0.03 | |||||||||||||||||||||||||
| South Sudan | 0.17 | |||||||||||||||||||||||||||
| Uganda | 1.38 | 0.45 | 0.42 | 0.38 | 0.35 | 0.32 | 0.29 | 0.26 | 0.20 | 0.13 | 0.07 | 0.01 | 0.04 | 0.01 | ||||||||||||||
| United States | 0.00 |
Ebola virus disease is a relatively rare viral pathogen linked with high case fatality rates in both humans and non-human primates. The disease is zoonotic, and while bats have been implicated as reservoirs, definitive host species are yet to be identified. Once a human becomes infected after viral transmission from animal sources either directly or indirectly, secondary human-to-human transmission is possible, primarily through exchange of infectious bodily fluids and secretions. Clinical cases typically present initially as a febrile illness, similar to a number of different pathogens, subsequently followed by haemorrhagic complications, and often death.
Source: Global Health Data Exchange