CHIKV in the Americas

Chikungunya in the Americas

Situation update 17 June 2014

Sylvain Aldighieri, CHA/IR

CHIKV in the Americas2

Title of the Presentation3

52 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

2013

2014

0

5000

10000

15000

20000

25000

30000

35000

40000

45000

New Chikungunya laboratory confirmed and clinically suspected cases recorded in the Americas by epidemiological weeks, years 2013-2014.

Epi Week

Num

ber o

f Cas

es

CHIKV in the Americas4

Current situatio

n

Number of Reported Cases of Chikungunya Fever in the Americas, by Country or Territory with Autochthonous

Transmission 2013-2014 (to week noted) Cumulative cases Epidemiological Week / EW 24 (Updated 13 June 2014)

Country/Territory WeekaCasesb

Incidence Ratec Deaths Population d

Suspected Confirmed X 1000Latin Caribbean Dominican Republic Week 23 77,320 18 743.3 1 10,404

French Guiana* Week 23 318 127.7 0 249Guadaloupe Week 22 35,000 1,328 7,795.7 1 466Haiti Week 23 11,802 14 114.5 0 10,317Martinique Week 23 35,000 1,515 9,038.4 9 404Puerto Rico Week 22 1 0.0 0 3,688Saint Barthelemy Week 23 570 142 8,000.0 0 9Saint Martin (French part) Week 23 3,380 793 11,692.4 3 36

Subtotal 163,072 4,129 653.8 14 25,573Non-Latin Caribbean Anguilla Week 13 33 206.3 0 16Antigua and Barbuda Week 20 4 4.4 0 90Dominica Week 22 2,492 129 3,590.4 0 73Guyana Week 23 16 2.0 0 800Saint Kitts and Nevis Week 21 22 43.1 0 51Saint Lucia Week 23 214 30 149.7 0 163Saint Vincent and the Grenadines Week 23 212 67 270.9 0 103Sint Maarten (Dutch part)Ξ Week 12 123 307.5 0 40

Turks and Caicos Islands& Week 24 2 4.2 0 48Virgin Islands (UK) Week 19 20 62.5 0 32Virgin Islands (US) Week 24 1 1.0 0 105

Subtotal 2,918 447 206.3 0 1,631TOTAL 165,990 4,576 627.0 14 27,204

Suspected cases: 165, 990Confirmed cases: 4,576Deaths: 14

Imported cases had been registered in Aruba, Barbados, Brazil, Chile, Cuba, Panama, the United States of America, and Venezuela

Puerto Rico

Virgin Islands (US)

Guyana

Turks and Caicos Islands

Antigua and Barbuda

Saint Kitts and Nevis

Virgin Islands (UK)

Haiti

French Guiana

Saint Lucia

Anguilla

Saint Vincent and the Grenadines

Sint Maarten (Dutch part)

Dominican Republic

Dominica

Guadaloupe

Saint Barthelemy

Martinique

Saint Martin (French part)

0 2,000 4,000 6,000 8,000 10,000 12,000

0.0

1.0

2.0

4.2

4.4

43.1

62.5

114.5

127.7

149.7

206.3

270.9

307.5

743.3

3,590.4

7,795.7

8,000.0

9,038.4 11,692.4

Incidence rate per 100 000 pop. June 2014

The CHIK

Gauzere BA & Aubry P, Path Exot Ed. 2006

The Chikungunya epidemic A double impact

The Shock The Check

Take away messages • As predicted, the first autochthonous transmission of the CHIK virus in

the Americas has been explosive;• All countries with previous history of Dengue transmission are at risk

depending of entomological indices and climatological factors;• Clinical Case Management and Laboratory procedures are different

from Dengue, Surveillance need some fine tuning, all other Dengue strategy components are the same (IVM, Environmental management, Social Communication);

• However we anticipate co circulation of Dengue and CHIK;• CHIK will have a double impact on health services delivery: 1. first

wave of acute cases and sub acute cases and 2. chronic cases………

• At the present time, the capacity of response of the countries / territories has not been surpassed.