This page was last updated on 21 October 2016
Weekly summary
Since 2015, and as of 20 October 2016, there have been 69 countries and territories reporting mosquito-borne transmission of the virus. According to WHO and as of 20 October 2016, 23 countries or territories have reported microcephaly and other central nervous system (CNS) malformations in newborns potentially associated with Zika virus infection.
- In the USA, 11 new locally-acquired cases have been reported in Florida since the last CDTR, bringing the cumulative number of locally-acquired cases to 166.
- On 14 October 2016, Martinique declared the Zika outbreak phase over, as only 90 cases were identified from 26 September to 2 October, compared with 1 140 weekly cases during the peak of the epidemic between 30 May and 5 June.
- On 17 October 2016, the health authorities in Vietnam reported the first possible case of microcephaly associated with Zika in a 4-month-old child living in Krong Buk district, Dak Lak province.
- In Trinidad and Tobago, brain abnormalities were recently detected on the ultrasounds of five unborn babies, at least four of them with Zika as the sole risk factor. Trinidad and Tobago registers approximately 12 cases of microcephaly yearly due to a variety of genetic causes.
- On 19 October, US CDC updated guidance for pregnant women and women and men of reproductive age for Zika virus infection related to the ongoing investigation of local mosquito-borne Zika virus transmission in Miami-Dade county, Florida.
- In the ECDC map: Fiji and Solomon Islands have been added back to the map indicating transmission in the past three months and the status of Vietnam has changed to ‘widespread transmission’.
Update on number of cases
The USA
Eleven locally-acquired cases have been recorded in Florida over the past week. To date, 166 locally-acquired and 747 imported cases of Zika have been reported in Florida. The distribution of the locally-acquired cases is as follows: 154 in Miami-Dade, five in Palm beach, one in Pinellas and one in Broward. The location of exposure for the other five cases is still under investigation.
EU/EEA imported cases:
Since July 2015 (week 26), 19 countries (Austria, Belgium, the Czech Republic, Denmark, Finland, France, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden and the United Kingdom) have reported 1 935 travel-associated Zika virus infections through The European Surveillance System (TESSy). Over the same time period, seven EU countries reported 91 Zika cases among pregnant women.
EU’s Outermost Regions and Territories
As of 20 October 2016:
Martinique: 36 590 suspected cases have been reported, an increase of 65 cases during the last week. Martinique declared the Zika outbreak phase over.
French Guiana: 9 851 suspected cases have been detected, an increase of 40 cases since the previous week. According to the regional situation report, the epidemic is over.
Guadeloupe: 30 775 suspected cases have been detected, an increase of 55 suspected cases since the previous week. The weekly number of cases has been decreasing.
St Barthélemy: 820 suspected cases have been detected, an increase of 15 suspected cases since the previous week. The weekly number of cases is stable.
St Martin: 2 670 suspected cases have been detected, an increase of 70 suspected cases since the previous week. The weekly number of cases is stable.
Martinique: 36 590 suspected cases have been reported, an increase of 65 cases during the last week. Martinique declared the Zika outbreak phase over.
French Guiana: 9 851 suspected cases have been detected, an increase of 40 cases since the previous week. According to the regional situation report, the epidemic is over.
Guadeloupe: 30 775 suspected cases have been detected, an increase of 55 suspected cases since the previous week. The weekly number of cases has been decreasing.
St Barthélemy: 820 suspected cases have been detected, an increase of 15 suspected cases since the previous week. The weekly number of cases is stable.
St Martin: 2 670 suspected cases have been detected, an increase of 70 suspected cases since the previous 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 20 October 2016, microcephaly and other central nervous system (CNS) malformations associated with Zika virus infection or suggestive of congenital infection have been reported by 23 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.
Web sources: ECDC Zika Factsheet | PAHO | Colombian MoH | Brazilian MoH | Brazilian microcephaly case definition | SAGE MOH Brazil |Florida Health department
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. 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 14 October 2016
| Countries affected in past 3 months | Areas (non-tropical countries only) | Type of transmission |
|---|---|---|
| American Samoa | Widespread transmission | |
| Anguilla | Widespread transmission | |
| Antigua and Barbuda | Widespread transmission | |
| Barbados | Widespread transmission | |
| Belize | Widespread transmission | |
| Bolivia | Widespread transmission | |
| Bonaire | Widespread transmission | |
| Brazil | 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 | |
| Grenada | 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 | |
| Philippines | 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 | |
| Singapore | Widespread transmission | |
| Sint Maarten | Widespread transmission | |
| Suriname | Widespread transmission | |
| Thailand | Widespread transmission | |
| Trinidad and Tobago | 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 |
| US Virgin Islands | Widespread transmission | |
| Venezuela | Widespread transmission | |
| Bahamas | Sporadic transmission | |
| British Virgin Islands (UK) | Sporadic transmission | |
| Cayman Islands | Sporadic transmission | |
| Cuba | Sporadic transmission | |
| Malaysia | Sporadic transmission | |
| Maldives | Sporadic transmission | |
| Saba | Sporadic transmission | |
| Saint Kitts and Nevis | Sporadic transmission | |
| Sint Eustatius | Sporadic transmission | |
| Turks and Caicos Islands | 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.
Countries or territories with reported confirmed autochthonous cases of Zika virus infection in the past three months, as of 21 October 2016
All latest ECDC maps with information on countries or territories with reported confirmed autochthonous cases of Zika virus infection
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ECDC Map Zika Virus St Maarten