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14 Apr 2017 description

Contents
- 181 Immunization and Vaccinerelated Implementation Research Advisory Committee (IVIR-AC): summary of conclusions and recommendations, 1–2 February 2017 meeting
- 188 Zika virus: an epidemiological update

Sommaire
- 181 Comité consultatif sur la vaccination et la recherche sur la mise en œuvre des vaccins (IVIR-AC): résumé des conclusions et recommandations, réunion du 1er et 2 février 2017
- 188 Virus Zika: le point de la situation épidémiologique

22 Sep 2016 description

KEY UPDATES

 Countries and territories reporting mosquito-borne Zika virus infections for the first time in the past week:
o Saint Kitts and Nevis

15 Sep 2016 description

KEY UPDATES

 Countries and territories reporting mosquito-borne Zika virus infections for the first time in the past week:

o None

 Countries in the Western Pacific Region have been reporting new cases as seen in Singapore, Philippines and Malaysia.

 Countries and territories reporting microcephaly and other central nervous system (CNS) malformations potentially associated with Zika virus infection for the first time in the past week:

o None

08 Sep 2016 description

Key Updates

Countries and territories reporting mosquito-borne Zika virus infections for the first time in the past week:

o None

 Malaysia, which previously reported Zika infections in 2014, has reported new mosquito-borne Zika virus infections in the past week

 Countries and territories reporting microcephaly and other central nervous system (CNS) malformations potentially associated with Zika virus infection for the first time in the past week:

o None

25 Aug 2016 description

KEY UPDATES

  • Countries and territories reporting mosquito-borne Zika virus infections for the first time in the past week:

  • None

  • Countries and territories reporting microcephaly and other central nervous system (CNS) malformations potentially associated with Zika virus infection for the first time in the past week:

  • Costa Rica, Dominican Republic and Haiti

04 Aug 2016 description

As of 3 August 2016, 68 countries and territories (Fig. 1, Table 1) have reported evidence of mosquito-borne Zika virus transmission since 2007 (65 of these countries and territories have reported evidence of mosquito-borne Zika virus transmission since 2015):

 51 countries and territories with a first reported outbreak from 2015 onwards (Table 1).

 Four countries are classified as having possible endemic transmission or have reported evidence of local mosquito-borne Zika infections in 2016.

28 Jul 2016 description

 As of 27 July 2016, 67 countries and territories have reported evidence of mosquito-borne Zika virus transmission since 2007 (64 of these countries and territories have reported evidence of mosquito-borne Zika virus transmission since 2015):

 50 countries and territories with a first reported outbreak from 2015 onwards.

 Four countries are classified as having possible endemic transmission or have reported evidence of local mosquito-borne Zika infections in 2016.

22 Jul 2016 description
  • The World Health Organization (WHO) and partners established a definition of what constitutes an outbreak, endemic transmission, and the interruption of mosquito-borne transmission in order to better characterize the level of transmission of Zika virus infection (Table 1, Fig. 2). This classification system was put into use as of the situation report of 7 July 2016.

14 Jul 2016 description

Summary

WHO and partners established a definition of what constitutes an outbreak, endemic transmission, and the interruption of mosquito-borne transmission in order to better characterize the level of transmission of Zika virus infection (Table 1, Fig. 2). This classification system was put into use as of the situation report of 7 July 2016.

07 Jul 2016 description

Summary

  • WHO and partners have established a definition of what constitutes an outbreak, endemic transmission, and the interruption of vector-borne transmission in order to better characterize the level of transmission of Zika virus infection (Table 1, Fig. 2). In addition, this will facilitate public health recommendations for residents and travellers. Based on these definitions, countries and territories reporting mosquito-borne Zika virus transmission were reclassified.

12 May 2016 description

Summary

  • As of 11 May 2016, 58 countries and territories report continuing mosquito-borne transmission of which:

  • 45 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitoes.

  • 13 countries reported evidence of Zika virus transmission between 2007 and 2014, with ongoing transmission.

05 May 2016 description
  • As of 4 May 2016, 57 countries and territories report continuing mosquito-borne transmission; for 44 countries this is their first documented Zika virus outbreak (Fig. 1).

  • Mosquito-borne transmission (Table 1):

  • 44 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos.

  • 13 countries reported evidence of Zika virus transmission between 2007 and 2014, with ongoing transmission.

28 Apr 2016 description

ZIKA VIRUS DISEASE, MICROCEPHALY AND GUILLAIN-BARRÉ SYNDROME

 As of 27 April, 55 countries and territories report continuing mosquito-borne transmission; for 42 countries this is their first documented Zika virus outbreak (Fig. 1).

 Mosquito-borne transmission (Table 1):

 42 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos.

 13 countries reported evidence of Zika virus transmission between 2007 and 2014, with ongoing transmission.

21 Apr 2016 description

SUMMARY

From 1 January 2007 to 20 April 2016, Zika virus transmission was documented in a total of 66 countries and territories.

Mosquito-borne transmission:

  • 42 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos.

  • 17 countries have reported evidence of Zika virus transmission prior to 2015, with or without ongoing transmission or have reported an outbreak since 2015 that is now over.

14 Apr 2016 description

SUMMARY

From 1 January 2007 to 13 April 2016, Zika virus transmission was documented in a total of 64 countries and territories.

Mosquito-borne transmission:

 42 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos.  17 countries have reported evidence of Zika virus transmission prior to 2015, with or without ongoing transmission or have reported an outbreak since 2015 that is now over.

Person-to-person transmission: 

24 Mar 2016 description

SUMMARY

 From 1 January 2007 to 23 March 2016, Zika virus transmission was documented in a total of 61 countries and territories. Four of these countries and territories reported a Zika virus outbreak that is now over. Argentina and New Zealand are the latest countries to report sexual transmission of Zika virus. Thus, five countries have now reported locally acquired infection in the absence of any known mosquito vectors, probably through sexual transmission (Argentina, France, Italy, New Zealand and the United States of America).

17 Mar 2016 description

SUMMARY

 From 1 January 2007 to 16 March 2016, Zika virus transmission was documented in a total of 59 countries and territories. Cuba and Dominica are the latest to report autochthonous (local) transmission of Zika virus on 14 and 15 March, respectively. Five of these countries and territories reported a Zika virus outbreak that is now over. Three countries (France, Italy and United States of America) have reported locally acquired infection in the absence of any known mosquito vectors, probably through sexual transmission.

10 Mar 2016 description

SUMMARY

  • The second meeting of the Emergency Committee was convened by the Director-General under the International Health Regulations (2005) on 8 March 2016. The Committee advised that the clusters of microcephaly cases and other neurological disorders in some areas affected by Zika virus continue to constitute a Public Health Emergency of International Concern, and that there is increasing evidence that there is a causal relationship with Zika virus.