Zika virus, Microcephaly and Guillain-Barré syndrome Situation Report, 5 January 2017

Report
from World Health Organization
Published on 05 Jan 2017 View Original

KEY UPDATES

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

o 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:

o None

 Countries and territories reporting Guillain-Barré syndrome (GBS) cases associated with Zika virus infection for the first time in the past week:

o None

 This is the last weekly situation report. Going forward, the reports will be published every two weeks. The next report will be issued on 19 January.

ANALYSIS

 Overall, the global risk assessment has not changed. Zika virus continues to spread geographically to areas where competent vectors are present. Although a decline in cases of Zika infection has been reported in some countries, or in some parts of countries, vigilance needs to remain high.

SITUATION

 Seventy-five countries and territories (Fig. 1, Table 1) have reported evidence of mosquitoborne Zika virus transmission since 2007 (69 with reports from 2015 onwards), of which:

o Fifty-eight with a reported outbreak from 2015 onwards (Fig. 2, Table 1).

o Seven with having possible endemic transmission or evidence of local mosquitoborne Zika infections in 2016 or 2017.

o Ten with evidence of local mosquito-borne Zika infections in or before 2015, but without documentation of cases in 2016 or 2017, or with the outbreak terminated.

 Thirteen countries have reported evidence of person-to-person transmission of Zika virus (Table 2).