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Epidemiological situation

This page was last updated on 23 September 2016
 
 

Since 1 February 2016, Zika virus infection and the related clusters of microcephaly cases and other neurological disorders constitute a public health emergency of international concern (PHEIC). Since 2015, and as of 22 September 2016, there have been 65 countries and territories reporting mosquito-borne transmission. According to WHO and as of 15 September 2016, 21 countries or territories have reported microcephaly and other central nervous system (CNS) malformations potentially associated with Zika virus infection or suggestive of congenital infection.

Update on number of cases

 
Twenty new locally-acquired cases have been reported in Florida since the last CDTR, brining the total number of locally-acquired cases to 92. In Asia, Singapore and Thailand continue to report locally-acquired cases. On 18 September, Saint Kitts and Nevis (Caribbean islands) reported the first three cases of locally-acquired Zika infection.
 
The USA 
Twenty new locally-acquired cases have been recorded in Florida over the past week. To date, 92 locally-acquired and 682 imported cases of Zika have been reported in Florida. The distribution of the locally-acquired cases is as follow: 85 in Miami-Dade, five in Palm beach, one in Pinellas and one in Broward.
 
Singapore  
As of 22 September 2016, the Singapore National Environment Agency (NEA) recorded 385 locally-acquired ZIKV cases, an increase of 30 cases since the last CDTR. 
 

EU/EEA imported cases

Since week 45/2015, 19 countries (Austria, Belgium, Czech Republic, Denmark, Finland, France, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom) have reported 1 624 travel-associated Zika virus infections through The European Surveillance System (TESSy). Over the same time period, seven EU countries reported 80 Zika cases among pregnant women.
 

EU’s Outermost Regions and Territories  

As of 22 September 2016:
 
  • Martinique: 36 260 suspected cases have been reported, an increase of 160 since last week. The weekly number of cases is stable.
  • French Guiana: 9 740 suspected cases have been detected, an increase of 77 cases since last week. The weekly number of cases is stable.
  • Guadeloupe: 30 130 suspected cases have been detected, an increase of 290 suspected cases since last week. The weekly number of cases is stable.
  • St Barthélemy: 725 suspected cases have been detected, an increase of 55 suspected cases since last week. The weekly number of cases is stable.
  • St Martin: 2 350 suspected cases have been detected, an increase of 85 suspected cases since last week. The weekly number of cases is stable.
 
Since February 2016, 12 countries have reported evidence of person-to-person transmission of Zika virus, probably via a sexual route.
 

Update on microcephaly and/or central nervous system (CNS) malformations potentially associated with Zika virus infection 

As of 22 September 2016, microcephaly and other central nervous system (CNS) malformations associated with Zika virus infection or suggestive of congenital infection have been reported by 21 countries or territories. Brazil reports the highest number of cases. Nineteen countries and territories worldwide have reported an increased incidence of Guillain-Barré syndrome (GBS) and/or laboratory confirmation of a Zika virus infection among GBS cases.

In the EU, Spain (2) and Slovenia (1) have reported congenital malformations associated with Zika virus infection after travel in the affected areas. Cases have also been detected in the EU’s Outermost Regions and Territories in Martinique, French Guiana and French Polynesia.

Web sources: ECDC Zika FactsheetPAHO |  Colombian MoH |  Brazilian MoH | Brazilian microcephaly case definition |SAGE MOH Brazil | Florida Health department

ECDC assessment

The spread of the Zika virus epidemic in the Americas is likely to continue as the vectors (Aedes aegypti and Aedes albopictus mosquitoes) are widely distributed there. The likelihood of travel-related cases in the EU is increasing. A detailed risk assessment was published on 30 August 2016. As neither treatment nor vaccines are available, prevention is based on personal protection measures. Pregnant women should consider postponing non-essential travel to Zika-affected areas.

 

Countries and territories with reported confirmed autochthonous cases of Zika virus infection in the past three months, as of 23 September 2016

  

Countries affected in past 3 months Areas (non-tropical countries only) Type of transmission
American Samoa   Widespread transmission
​​Anguilla ​Widespread transmission
Argentina Tucumán Province Widespread transmission
Barbados   Widespread transmission
Belize   Widespread transmission
Bolivia   Widespread transmission
Bonaire   Widespread transmission
Brazil   Widespread transmission
Cape Verde   Widespread transmission
Colombia   Widespread transmission
Costa Rica   Widespread transmission
Curaçao   Widespread transmission
Dominica   Widespread transmission
​Dominican Republic ​Widespread transmission
Ecuador   Widespread transmission
El Salvador   Widespread transmission
Fiji   Widespread transmission
French Guiana   Widespread transmission
Guadeloupe   Widespread transmission
Guatemala   Widespread transmission
Haiti   Widespread transmission
Honduras   Widespread transmission
Jamaica   Widespread transmission
Martinique   Widespread transmission
Mexico   Widespread transmission
Micronesia, Federated States of   Widespread transmission
Nicaragua   Widespread transmission
Panama   Widespread transmission
Paraguay   Widespread transmission
Peru   Widespread transmission
Puerto Rico   Widespread transmission
Saint Lucia   Widespread transmission
Saint Martin   Widespread transmission
Saint Vincent and the Grenadines   Widespread transmission
Saint-Barthélemy   Widespread transmission
Samoa   Widespread transmission
​Singapore ​Widespread transmission
Sint Maarten   Widespread transmission
Suriname   Widespread transmission
Thailand   Widespread transmission
Trinidad and Tobago   Widespread transmission
US Virgin Islands   Widespread transmission
United States of America ​​Florida (Miami-Dade county) ​Widespread transmission
​​​United States of America ​Florida (Broward, Palm Beach and Pinellas  counties) ​Sporadic transmission
​​​​Venezuela ​Widespread transmission
Antigua and Barbuda   Sporadic transmission
​Bahamas ​Sporadic transmission
​British Virgin Island (UK) ​Sporadic transmission
​Cayman Islands ​Sporadic transmission
​Cuba ​Sporadic transmission
Grenada   Sporadic transmission
Guinea-Bissau   Sporadic transmission
​Malaysia Sporadic transmission​
​Philippines ​Sporadic transmission
Saba   Sporadic transmission
Sint Eustatius   Sporadic transmission
​​Saint Kitts and Nevis ​Sporadic transmission
Turks and Caicos Islands   Sporadic transmission
​Vietnam ​Sporadic transmission
The classification of countries above is based on: 1) number of reported autochthonous confirmed cases; 2) number of countries who report a zika virus transmission or a country’s transmission status changes; 3) duration of the circulation.
The classification of countries above is based on: 1) number of reported autochthonous confirmed cases; 2) number of countries who report a zika virus transmission or a country’s transmission status changes; 3) duration of the circulation.

Countries or territories with reported confirmed autochthonous cases of Zika virus infection in the past three months, as of 23 September 2016

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