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Epidemiological situation

This page was last updated on 20 January 2017

Since 2015, and as of 19 January 2017, 71 countries and territories have reported evidence of mosquito-borne transmission of the virus. According to the World Health Organization (as of 4 January 2017), 29 countries or territories reported microcephaly and other central nervous system malformations in newborns which are potentially associated with Zika virus infection.

Weekly Summary

ECDC maps 
Fiji and Haiti have been removed from the map of countries and territories with autochthonous vector-borne transmission of Zika virus infection in the past three months.

Update on the number of cases

Worldwide
Since 2015 and as of 19 January 2017, 71 countries and territories have reported evidence of mosquito-borne transmission of the virus. Since February 2016 and as of 4 January 2017, 13 countries or territories have reported evidence of person-to-person transmission of the virus, probably via sexual transmission.

USA
In Florida, 257 locally acquired and 1 026 travel-related cases have been reported as of 12 January 2017.
In Texas, six locally acquired and 299 travel-related cases have been reported as of 17 January 2017.

EU/EEA imported cases
Since June 2015 (week 26), 21 countries (Austria, Belgium, the Czech Republic, Denmark, Finland, France, Greece, Hungary, Ireland, Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden and the United Kingdom) have reported 2 078 travel-associated Zika virus infections through The European Surveillance System (TESSy). Over the same time period, nine EU/EEA Member States have reported 102 Zika cases among pregnant women. 

 

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

As of 4 January 2017, 29 countries or territories have reported microcephaly and other central nervous system malformations in newborns which are potentially associated with Zika virus infection. Brazil is reporting the highest number of cases. As of 4 January 2017, 21 countries or territories have reported Guillain-Barré syndrome potentially associated with Zika virus infection.
 

 

ECDC Assessment

The spread of the Zika virus in the Americas and Asia 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. ECDC is preparing an update of the risk assessment published on 28 October 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 13 January 2016

Countries Region Last case since 3 months
American Samoa Widespread transmission
Angola Sporadic transmission
Anguilla Widespread transmission
Antigua and Barbuda Widespread transmission
Argentina Tucuman Historical Zika virus circulation
Aruba Widespread transmission
Bahamas Widespread transmission
Barbados Widespread transmission
Belize Widespread transmission
Bolivia Widespread transmission
Bonaire Widespread transmission
Brazil Widespread transmission
British Virgin Islands (UK) Widespread transmission
Cape Verde No
Cayman Islands Widespread transmission
Colombia Widespread transmission
Costa Rica Widespread transmission
Cuba Widespread transmission
Curaçao Widespread transmission
Dominica Widespread transmission
Dominican Republic Widespread transmission
Ecuador Widespread transmission
El Salvador Widespread transmission
Fiji Historical Zika virus circulation
French Guiana Widespread transmission
Grenada Widespread transmission
Guadeloupe Widespread transmission
Guatemala Widespread transmission
Guinea-Bissau No
Guyana Widespread transmission
Haiti Historical Zika virus circulation
Honduras Widespread transmission
Indonesia No
Jamaica Widespread transmission
Malaysia Widespread transmission
Maldives Sporadic transmission
Martinique Widespread transmission
Mexico Widespread transmission
Micronesia, Federated States of Widespread transmission
Montserrat Sporadic transmission
New Caledonia No
Nicaragua Widespread transmission
Palau Sporadic transmission
Panama Widespread transmission
Paraguay Widespread transmission
Peru Widespread transmission
Philippines Widespread transmission
Puerto Rico Widespread transmission
Saba Historical Zika virus circulation
Saint Kitts and Nevis Widespread transmission
Saint Lucia Widespread transmission
Saint Martin Widespread transmission
Saint Vincent and the Grenadines Widespread transmission
Saint-Barthélemy Widespread transmission
Samoa No
Singapore Widespread transmission
Sint Eustatius Historical Zika virus circulation
Sint Maarten Widespread transmission
Solomon Islands No
Suriname Widespread transmission
Thailand Widespread transmission
Tonga No
Trinidad and Tobago Widespread transmission
Turks and Caicos Islands Widespread transmission
United States of America Miami-Dade Widespread transmission
United States of America Broward Historical Zika virus circulation
United States of America Palm Beach Historical Zika virus circulation
United States of America Cameron Sporadic transmission
US Virgin Islands Widespread transmission
Venezuela Widespread transmission
Vietnam Widespread transmission
United States of America Pinellas Historical Zika virus 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 13 January  2016




All latest ECDC maps with information on countries or territories with reported confirmed autochthonous cases of Zika virus infection.

 
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