National Notifiable Diseases Surveillance System - current CDNA fortnightly report

The Communicable Diseases Network Australia (CDNA) holds fortnightly teleconferences to share and evaluate the latest information and developments in communicable diseases surveillance. This report provides a fortnightly summary on diseases of current interest and notifications of Australia's nationally notifiable diseases.

Page last updated: 24 January 2017

Fortnight 01: 01 January to 13 January 2017

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Chikungunya virus infection

Between 1 and 13 January 2017, there were 6 notifications of CHIKV infection, compared with 4 during the previous reporting period and 3 during the same reporting period of 2015. There were 57 notifications during the past quarter, 3.2 times the quarterly rolling mean of 17.6.

There has been a recent increase in the number of cases imported from India (Figure 1) with 57 cases between September 2016 and 13 January 2017 reported as being acquired there.

India’s National Vectorborne Disease Control Programme reported 58,136 clinically suspected cases in 2016, compared with an average of 19,764 cases over the previous 5 years. In Delhi, there were 12,221 clinical cases in 2016 compared with 64 in 2015.

An outbreak of CHIKV has recently been reported in Pakistan, with 230 suspected cases presenting to hospitals in the Malir district of Karachi during the month of December 2016, but there have been no cases in Australia reported as being acquired in Pakistan.

Figure 1 Notifications of Chikungunya virus infection in Australia by notification receive date and selected countries of acquisition, 1 January 2014 to 13 January 2017.

 

Ross River Virus (RRV)

Between 1 and 13 January 2017, there were 363 notifications of RRV, compared with 159 during the previous reporting period and 86 during the same period of 2016. There were 918 notifications during the past quarter, a ratio of 0.9 compared with the 5 year mean of 996.2 notifications.

While notifications were below the five year mean nationally, there were substantial increases between 1 and 13 January 2017 particularly in Victoria (108 notifications) and New South Wales (101 notifications) (see Figure 2).

Figure 2 Notifications of Ross River virus infection in Australia by notification receive date and state or territory, 1 January 2014 to 13 January 2017.

 

 

Dengue Virus (DENV) infection

Between 1 and 13 January 2017, there were 35 notifications of DENV, compared with 25 during the previous reporting period and 86 during the same period of 2016. There were 261 notifications during the past quarter, a ratio of 1.0 compared with the 5 year mean of 272 notifications.

While notifications were similar to the five year mean nationally, it should be noted that Queensland Health has reported two outbreaks of locally-acquired dengue in Boigu Island (2 confirmed cases DENV 1, declared 4 January 2017) and Cairns and Hinterland (1 confirmed case DENV3, declared 16 December 2016).


Interpretative Notes

Selected diseases are chosen each fortnight based on either exceeding two standard deviations from the 90 day and/or 365 day five year rolling mean or other disease issues of significance identified during the reporting period. All diseases reported are analysed by notification receive date. Data are extracted each Monday of a CDNA week.

Totals comprise data from all States and Territories. Cumulative figures are subject to retrospective revision so there may be discrepancies between the number of new notifications and the increment in the cumulative figure from the previous period.

  1. The past quarter (90 day) surveillance period includes the date range 16/10/2016 to 13/01/2017.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 13/01/2017. The ratio is the notification activity in the past quarter (90 days) compared with the five year rolling mean for the same period.
  3. The past year (365 day) surveillance period includes the date range 15/01/2016 to 13/01/2017.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 13/01/2017. The ratio is the notification activity in the past year (365 days) compared with the five year rolling mean for the same period.

The five year rolling mean and the ratio of notifications compared with the five year rolling mean should be interpreted with caution. Changes in surveillance practice, diagnostic techniques and reporting may contribute to increases or decreases in the total notifications received over a five year period. Ratios are to be taken as a crude measure of current disease activity and may reflect changes in reporting rather than changes in disease activity.


Table of communicable disease notifications reported to the NNDSS for this fortnight

Please use the scroll bar located at the end of the table below to view all columns.

A copy of the table of communicable disease notifications for this fortnight is also included in the PDF printable version of the NNDSS report.

Notifications of Nationally Notifiable Diseases for the period 01/01/2017 to 13/01/2017

Footnotes:

* Ratio of the 90 day prior surveillance period to the past 90 day 5 year rolling mean, or ratio of the 365 day prior surveillance period to the 365 day 5 year rolling mean.

NN = Not Notifiable, NEC = Not Elsewhere Classified

The data in this report is reliant on the surveillance data provided from by states and territories to the Department of Health. Delays in the reporting of data may cause retrospective revision causing discrepancies between the number of new notifications and the increment in the cumulative figures from the previous period. Please note that Victoria is currently experiencing an administrative backlog in the entry of notifications, this has affected the availability of notification data for the following diseases: Gonoccocal infection, Varicella and Campylobacteriosis.

 

Dates used are:

  • Past Quarter (90d prior surveillance period): 16/10/2016 to 13/01/2017
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 16/10/2015 to 13/01/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 16/10/2014 to 13/01/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 16/10/2013 to 13/01/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 16/10/2012 to 13/01/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 16/10/2011 to 13/01/2012
  • Past year (365d prior surveillance period): 15/01/2017 to 13/01/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 14/01/2015 to 13/01/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 14/01/2014 to 13/01/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 14/01/2013 to 13/01/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 15/01/2012 to 13/01/2013
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 14/01/2011 to 13/01/2012
  State or Territory Totals for Australia Historical 90 Day Period Historical 365 Day Period
Disease ACT NSW NT QLD SA TAS VIC WA This
Reporting
Period
Previous
Reporting
Period
Same
Reporting
Period
Last Year
2017 YTD Past
Quarter
Quarterly
Rolling
5 year
mean
Ratio
Past
Quarter
/5 year
mean
Exceeds
Quarterly
rolling
mean +2
SD by
Past
Year
Yearly
rolling
5 year
mean
Ratio
Past
year
/5 year
mean
Exceeds
Yearly
rolling
mean +2
SD by
Bloodborne diseases
Hepatitis B (newly acquired) 0 1 0 2 0 0 1 1 5 3 3 5 34 41.0 0.8 - 154 175.2 0.9 -
Hepatitis B (unspecified) 2 56 0 37 3 0 49 11 158 156 194 158 1,351 1,493.8 0.9 - 6,383 6,469.2 1.0 -
Hepatitis C (newly acquired) 0 1 0 10 1 0 2 0 14 16 20 14 160 102.6 1.6 32.2 690 436.8 1.6 208.6
Hepatitis C (unspecified) 7 93 9 80 0 6 44 40 279 273 319 279 2,545 2,406.4 1.1 - 11,105 10,068.0 1.1 372.7
Hepatitis D 0 0 0 1 0 0 0 0 1 1 1 1 15 11.0 1.4 - 54 48.4 1.1 -
Gastrointestinal diseases
Botulism 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 1 1.8 0.6 -
Campylobacteriosis 24 NN 9 413 150 39 29 155 819 639 891 819 6,189 4,946.6 1.3 - 23,441 18,145.0 1.3 -
Cryptosporidiosis 1 65 4 72 9 0 43 10 204 156 159 204 1,000 610.4 1.6 - 5,435 3,063.0 1.8 421.4
Haemolytic uraemic syndrome (HUS) 0 0 0 0 0 0 0 1 1 2 0 1 7 4.8 1.5 - 17 17.6 1.0 -
Hepatitis A 0 1 0 1 0 0 3 1 6 12 12 6 42 42.0 1.0 - 137 183.6 0.7 -
Hepatitis E 0 1 0 0 0 0 2 0 3 1 3 3 9 10.2 0.9 - 39 40.4 1.0 -
Listeriosis 0 0 0 0 0 0 2 1 3 3 3 3 23 21.6 1.1 - 85 77.8 1.1 -
Paratyhoid 0 0 0 0 0 0 0 0 0 5 6 0 14 18.0 0.8 - 75 72.0 1.0 -
STEC 0 7 0 2 16 1 4 2 32 21 5 32 150 32.0 4.7 94.5 350 127.4 2.7 155.7
Salmonellosis 18 164 18 290 76 14 164 90 834 623 833 834 4,174 3,511.8 1.2 - 18,275 13,900.2 1.3 -
Shigellosis 0 12 11 15 0 0 16 6 60 46 59 60 362 186.8 1.9 42.9 1,407 732.8 1.9 112.5
Typhoid Fever 0 1 0 0 0 0 1 0 2 5 3 2 23 29.4 0.8 - 103 127.2 0.8 -
Quarantinable diseases
Avian influenza in humans (AIH) 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Cholera 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.0 - 2 3.4 0.6 -
Middle East respiratory syndrome coronavirus (MERS-CoV) 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Plague 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Rabies 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Severe Acute Respiratory Syndrome (SARS) 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Smallpox 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Viral haemorrhagic fever (NEC) 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Yellow fever 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.4 0.0 -
Sexually transmissible infections
Chlamydial infection 44 767 30 766 197 3 1 405 2,213 1,723 2,065 2,213 16,610 18,812.4 0.9 - 74,588 81,265.4 0.9 -
Donovanosis 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.4 0.0 -
Gonococcal infection 12 288 27 190 50 6 263 107 943 687 600 943 5,510 3,806.6 1.4 639.1 22,588 15,167.6 1.5 2,662.4
Syphilis < 2 yearsᵡ 0 10 5 35 0 0 10 12 72 68 89 72 639 462.8 1.4 - 3,065 1,873.8 1.6 47.0
Syphilis > 2 years or unspecified duration 0 3 2 9 0 0 65 2 81 39 52 81 487 376.0 1.3 - 1,961 1,644.0 1.2 -
Syphilis - congenital 0 0 0 0 0 0 0 0 0 0 0 0 0 0.8 0.0 - 2 4.4 0.5 -
Vaccine preventable diseases
Diphtheria 0 0 0 0 0 0 0 0 0 1 0 0 4 0.6 6.7 2.3 8 2.2 3.6 2.8
Haemophilus influenzae type b 0 1 0 0 0 0 0 0 1 0 0 1 5 3.2 1.6 - 19 17.0 1.1 -
Influenza (laboratory confirmed) 10 258 29 397 104 19 237 56 1,110 956 420 1,110 12,072 3,981.6 3.0 5,249.3 91,303 53,781.2 1.7 -
Measles 0 2 0 1 0 0 0 2 5 6 0 5 28 40.8 0.7 - 99 192.6 0.5 -
Mumps 0 2 9 2 4 0 3 1 21 18 37 21 108 89.0 1.2 - 782 283.4 2.8 79.4
Pertussis 21 281 16 57 75 1 99 40 590 611 1,065 590 5,367 6,397.6 0.8 - 19,639 21,937.0 0.9 -
Pneumococcal disease (invasive) 1 14 1 8 5 2 12 7 50 45 44 50 387 325.0 1.2 16.6 1,664 1,665.2 1.0 -
Poliovirus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Rubella 0 0 0 0 0 0 0 0 0 0 1 0 2 5.6 0.4 - 17 30.4 0.6 -
Rubella congenital 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.0 - 0 0.8 0.0 -
Tetanus 0 0 0 0 0 0 0 0 0 0 0 0 1 1.0 1.0 - 6 3.8 1.6 -
Varicella zoster (chickenpox) 3 NN 7 1 5 1 2 21 40 53 75 40 490 605.4 0.8 - 2,170 2,161.2 1.0 -
Varicella zoster (shingles) 8 NN 11 3 39 2 2 49 114 173 249 114 1,207 1,336.8 0.9 - 5,959 5,092.2 1.2 -
Varicella zoster (unspecified) 9 NN 0 298 50 13 1 73 444 332 515 444 2,559 2,863.6 0.9 - 12,848 10,912.0 1.2 -
Vectorborne diseases
Barmah Forest virus infection 0 1 0 7 0 0 0 0 8 10 14 8 63 328.6 0.2 - 308 1,839.0 0.2 -
Chikungunya virus infection 0 2 0 1 0 0 2 1 6 4 3 6 57 17.6 3.2 11.5 114 82.8 1.4 -
Dengue virus infection 0 5 5 10 1 0 0 14 35 25 71 35 261 272.0 1.0 - 2,134 1,528.8 1.4 -
Flavivirus unspecified (unspecified) 0 0 0 1 0 0 0 0 1 0 1 1 17 1.2 14.2 14.1 119 12.2 9.8 96.4
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.0 - 0 1.8 0.0 -

Malaria

0 3 0 4 0 0 0 5 12 7 11 12 75 78.4 1.0 - 306 346.2 0.9 -
Murray Valley encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 3.8 0.0 -
Ross River virus infection 1 101 9 42 50 0 108 52 363 159 86 363 918 996.2 0.9 - 3,413 5,806.0 0.6 -
West Nile/Kunjin virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6 0.0 - 0 1.2 0.0 -
Zoonoses
Anthrax 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Australian bat lyssavirus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.2 0.0 -
Brucellosis 0 0 1 1 0 0 0 0 2 1 2 2 4 6.4 0.6 - 17 23.4 0.7 -
Leptospirosis 0 0 0 1 0 0 0 3 4 5 8 4 28 15.4 1.8 1.8 136 116.6 1.2 -
Lyssavirus infecton (NEC) 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Ornithosis 0 1 0 0 0 0 0 0 1 0 0 1 8 20.0 0.4 - 18 54.0 0.3 -
Q fever 0 2 0 12 1 0 0 1 16 11 17 16 143 111.4 1.3 - 546 459.4 1.2 -
Tularaemia 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.0 - 0 0.4 0.0 -
Other bacterial infections
Legionellosis 0 2 0 4 4 0 4 3 17 15 10 17 92 104.8 0.9 - 369 407.8 0.9 -
Leprosy 0 0 0 1 0 0 0 0 1 0 0 1 7 3.2 2.2 1.6 22 10.8 2.0 4.7
Meningococcal disease (invasive) 0 4 0 9 1 2 4 1 21 13 10 21 90 41.8 2.2 36.1 265 193.8 1.4 -
Tuberculosis 0 19 0 19 0 0 12 5 55 60 31 55 382 346.6 1.1 - 1,394 1,310.4 1.1 -
Totals 161 2,200 206 2,852 853 109 1,185 1,202 8,768 7,085 8,134 8,768 64,555        316,328       
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