Zika virus - notifications of Zika virus infection (Zika)

This page contains information about notifications of Zika in Australia. All cases of Zika virus in Australia have been imported from overseas.

Page last updated: 27 May 2016

National Notifiable Diseases Surveillance System

Notifications of Zika virus infection (Zika)

Data as at 27 May 2016

All notifications of Zika in Australia have been for infections acquired overseas.

Table 1: Notifications of Zika in Australia, by state or territory of residence and year of diagnosis, National Notifiable Diseases Surveillance System

State or territory of residence
2012
2013
2014
2015
2016
Total
ACT
0
0
0
0
0
0
NSW
0
0
4
1
8
13
NT
0
1
0
0
1
2
Qld
0
0
7
4
17
28
SA
1
0
0
1
2
4
Tas.
0
0
0
0
0
0
Vic.
0
0
2
1
6
9
WA
0
0
0
1
3
4
Total
1
1
13
8
37
60
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Table 2: Notifications of Zika virus infection in Australia in 2016, by country of acquisition, National Notifiable Diseases Surveillance System

Country of acquisition Number of notifications in 2016
Barbados
2
Colombia
1
Brazil
3
Dominican Republic
1
El Salvador
2
Fiji
5
Guatemala
2
Guyana
1
Haiti
2
Samoa
4
South America not elsewhere classified
1
Tonga
11
Vietnam
1
Overseas - country not yet known
1
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Notes and caveats

There may be some minor variation in case numbers over the next few weeks, as a result of review of cases against the recently finalised Zika virus case definition. The new case definition supports greater consistency in the classification and reporting of cases.

These data include all confirmed cases of Zika in Australia. The first case was reported in 2012. Zika is notified under flavivirus (unspecified) as per the Communicable Diseases Network Australia surveillance case definition, available from the Department of Health website.

A major limitation of the notification data is that, for most diseases, they represent only a proportion of the total cases occurring in the community, that is, only those cases for which health care was sought, a test conducted and a diagnosis made, followed by a notification to health authorities. The degree of under-representation of all cases is unknown and is most likely variable by disease and jurisdiction.

The year of diagnosis is based on the field diagnosis date, which represents either the onset date or where the date of onset was not known, the earliest of the specimen collection date, the notification date, or the notification receive date.

For further details on NNDSS and data interpretation, refer to Australia's notifiable diseases status: Annual report of the National Notifiable Diseases Surveillance System Annual report series published in Communicable Diseases Intelligence, available from: (www.health.gov.au/internet/main/publishing.nsf/Content/cda-pubs-annlrpt-nndssar.htm).

Acknowledgements

The Australian Government Department of Health acknowledges the Communicable Diseases Network Australia, the work of public health officers involved in the collection of surveillance data; state and territory public health communicable disease surveillance managers and data managers; and public and private laboratories.