Global Disease Outbreak Map
Tile-map of 236 countries with at least one WHO-tracked outbreak event since 1996, shaded by quartile density.
How To Read This Map
Every country with at least one WHO-tracked outbreak event since 1996 is rendered below, sized and shaded by total event count. Darker red = higher historical outbreak density; grey = no events on record. Click any country tile to open its full disease history.
Color thresholds are derived from the live quartile distribution — they shift as new events are ingested. Today’s thresholds: endemic > 17 events, recurrent > 10, emerging > 7, sporadic ≥ 1.
Countries on map
236
Total events plotted
3,149
Max per country
68
Outbreak Density by Country
All 236 tracked countries, shaded by total WHO outbreak events. Hover for detail, click any tile.
CD
68
NG
54
US
44
BR
43
NE
38
FR
38
SD
37
GB
37
CN
36
TD
36
KE
35
IN
34
UG
33
CI
31
BF
31
CG
30
CM
30
ET
30
GH
29
BD
28
PK
28
AF
27
SO
26
TG
26
TZ
25
CF
25
NL
24
DE
24
GN
24
MX
23
LR
23
BJ
22
ES
22
ZA
21
MZ
21
RU
20
ML
20
SN
20
BO
20
MG
20
TH
20
ZM
20
IT
20
BI
20
CO
20
CA
19
PH
19
PE
19
KH
19
RW
19
CL
19
AO
19
ID
18
AR
18
MY
18
SS
18
AT
18
GR
17
SE
17
EC
17
HN
17
PA
17
VE
16
ZW
16
MR
16
BE
16
GT
16
NI
15
VN
15
SL
15
AU
15
RO
15
CR
14
MW
14
NP
14
DZ
14
MM
14
NO
14
IQ
14
JP
14
OM
14
IE
14
GY
14
LA
14
IL
14
DK
14
SG
14
SI
13
PT
13
CH
13
PL
13
UA
13
YE
13
QA
13
SA
13
HT
13
IR
13
JM
13
LB
12
SV
12
PY
12
KR
12
HR
12
BZ
12
GF
12
TR
12
AE
12
RS
12
LV
12
IS
11
UY
11
SR
11
CU
11
LK
11
GE
11
HU
11
AL
10
BG
10
LC
10
CY
10
FI
10
MU
10
CZ
10
LU
10
NC
10
AM
10
TC
10
BB
10
RE
10
MD
10
GA
10
MV
10
ST
10
CV
10
KZ
10
DO
10
SK
10
SC
9
MK
9
FJ
9
MF
9
GW
9
GM
9
GP
9
BA
9
MA
9
SY
9
EE
8
TT
8
TO
8
XK
8
WS
8
LT
8
VG
8
TL
8
WF
8
KW
8
VC
8
BT
8
GD
8
KG
8
PG
8
MN
8
BS
8
BN
8
MT
8
AZ
8
CK
7
KN
7
BY
7
AW
7
GU
7
YT
7
SB
7
NZ
7
EG
7
FM
7
LS
7
MQ
7
PF
7
BL
7
TJ
7
UZ
7
PR
7
SX
6
KY
6
TN
6
VU
6
MH
6
SZ
6
LY
6
MP
6
BQ
6
KM
6
ME
6
HK
6
VI
6
CW
6
PW
6
BW
6
LI
6
DM
6
AG
6
NA
6
DJ
6
PS
6
KI
5
GI
5
TV
5
BM
5
AS
5
AD
5
MC
5
MS
5
GQ
5
NR
4
PM
4
JE
4
SM
4
ER
4
FK
4
BH
4
AI
4
GG
4
TK
4
NU
4
JO
3
FO
3
GL
3
KP
3
IM
3
TW
2
MO
1
PN
1
SH
1
VA
1
Frequently Asked Questions
Is the coloring absolute or relative?
Relative. The four risk tiers come from the quartile distribution of the countries that have events on record. A country marked "sporadic" today may shift tier as data accumulates.
Why is a country grey?
Grey means zero WHO-tracked outbreak events — not that the country is disease-free. Many low-surveillance nations under-report.
How do I see the underlying events?
Click any country tile to open its country profile, which lists every disease reported there with an event count for each.