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: 22 June 2017

Fortnight 11: 20 May to 02 June 2017

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West Nile/Kunjin Virus infection

Between 20 May and 2 June 2017 there was one notification of West Nile/Kunjin Virus (WNV/KUNV) infection. There have been three notifications during the past quarter (5 March to 2 June 2017) compared with the quarterly rolling mean of 0.6 cases.

These three cases were notified by Western Australia and were locally acquired. While infection with KUNV is probably not uncommon in northern Australia, clinical KUNV cases are rare.1

Invasive Meningococcal Disease (IMD)

The number of cases of IMD due to serogroup W (MenW) has been increasing across most jurisdictions in Australia since 2013. The Commonwealth Department of Health, in collaboration with the states and territories, is closely monitoring the incidence of MenW in Australia. For the latest information on IMD, refer to the Department’s website.

Infectious syphilis

Increases in infectious syphilis notifications are attributed to the on-going outbreak occurring in young Aboriginal and Torres Strait Islander people residing in northern Australia.

In January 2011, an increase of infectious syphilis notifications among young Aboriginal and Torres Strait Islander people was identified in the North West region of Queensland, following a steady decline at a national level in remote communities. Subsequent increases in infectious syphilis notifications were reported in the Northern Territory in 2013, Western Australia in 2014 and South Australia in 2016, following sustained periods of low notification rates.

For the latest information on the infectious syphilis outbreak, refer to the Department’s website - Infectious syphilis outbreak.


Reference
1. Gray TJ, Burrow JN, Markey PG, Whelan PI, Jackson J, Smith DW, et al. West Nile virus (Kunjin subtype) disease in the Northern Territory of Australia—A case of encephalitis and review of all reported cases. Am J Trop Med Hyg 2011;85(5):952-956.


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 05/03/2017 to 02/06/2017.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 02/06/2017. 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 03/06/2016 to 02/06/2017.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 02/06/2017. 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 20/05/2017 to 02/06/2017

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): 05/03/2017 to 02/06/2017
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 05/03/2016 to 02/06/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 05/03/2015 to 02/06/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 05/03/2014 to 02/06/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 05/03/2013 to 02/06/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 05/03/2012 to 02/06/2012
  • Past year (365d prior surveillance period): 03/06/2017 to 02/06/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 04/06/2015 to 02/06/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 03/06/2014 to 02/06/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 03/06/2013 to 02/06/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 03/06/2012 to 02/06/2013
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 04/06/2011 to 02/06/2012
  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 0 0 0 0 0 3 1 4 4 7 61 32 43.6 0.7 - 136 173.4 0.8 -
Hepatitis B (unspecified) 7 117 2 26 2 4 88 21 267 233 312 2,613 1,585 1,638.8 1.0 - 6,191 6,487.0 1.0 -
Hepatitis C (newly acquired) 1 0 0 5 0 0 0 2 8 21 30 249 127 152.8 0.8 - 650 589.6 1.1 -
Hepatitis C (unspecified) 7 127 7 105 2 11 79 46 384 350 479 4,219 2,416 2,567.0 0.9 - 10,458 9,937.6 1.1 -
Hepatitis D 0 0 0 1 0 0 0 0 1 2 1 20 12 11.4 1.1 - 58 49.0 1.2 -
Gastrointestinal diseases
Botulism 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6 0.0 - 0 2.0 0.0 -
Campylobacteriosis 12 NN 25 278 87 17 214 102 735 838 771 10,154 5,199 4,234.2 1.2 - 24,747 18,469.2 1.3 -
Cryptosporidiosis 4 37 6 31 15 1 64 11 169 214 199 3,316 1,943 1,484.2 1.3 - 5,187 3,544.4 1.5 -
Haemolytic uraemic syndrome (HUS) 0 0 0 0 0 0 0 0 0 2 1 9 7 3.6 1.9 0.1 19 18.0 1.1 -
Hepatitis A 0 0 0 1 0 0 0 1 2 1 2 65 28 42.6 0.7 - 137 182.4 0.8 -
Hepatitis E 0 0 0 0 0 0 0 0 0 1 0 27 13 9.8 1.3 - 41 41.2 1.0 -
Listeriosis 0 0 0 3 0 0 0 0 3 2 3 34 14 22.4 0.6 - 72 80.4 0.9 -
Paratyhoid 0 0 0 0 0 0 0 1 1 2 1 32 14 19.2 0.7 - 68 72.6 0.9 -
STEC 0 0 0 0 9 0 0 2 11 12 7 220 114 33.4 3.4 74.2 471 136.8 3.4 276.4
Salmonellosis 6 122 18 181 50 3 111 103 594 621 681 9,445 5,075 4,409.8 1.2 - 17,584 14,496.2 1.2 -
Shigellosis 0 9 17 15 0 1 19 6 67 72 49 674 368 203.6 1.8 12.4 1,492 795.8 1.9 107.7
Typhoid Fever 0 1 0 1 1 0 1 0 4 4 2 82 47 31.6 1.5 1.3 131 122.8 1.1 -
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 1.0 0.0 - 1 2.6 0.4 -
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 0.2 0.0 -
Sexually transmissible infections
Chlamydial infection 75 996 87 927 243 0 110 418 2,856 3,262 3,191 35,259 20,211 21,146.8 1.0 - 78,837 81,855.2 1.0 -
Donovanosis 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.0 - 0 0.4 0.0 -
Gonococcal infection 8 267 70 220 58 3 199 122 947 1,010 944 12,535 6,939 4,340.0 1.6 799.6 26,694 16,011.8 1.7 5,158.7
Syphilis < 2 yearsᵡ 0 20 11 39 3 0 19 10 102 154 131 1,568 897 543.6 1.7 - 3,536 2,039.2 1.7 101.0
Syphilis > 2 years or unspecified duration 0 6 2 13 1 2 86 2 112 86 74 1,001 608 450.0 1.4 - 2,141 1,698.8 1.3 -
Syphilis - congenital 0 0 0 0 0 0 0 0 0 0 0 2 2 0.6 3.3 0.3 4 3.8 1.1 -
Vaccine preventable diseases
Diphtheria 0 0 0 0 0 0 0 0 0 0 0 2 2 0.4 5.0 0.5 8 1.8 4.4 2.9
Haemophilus influenzae type b 0 1 0 0 0 0 0 0 1 1 1 5 2 3.4 0.6 - 16 17.4 0.9 -
Influenza (laboratory confirmed) 21 505 10 514 314 20 242 80 1,706 1,208 897 13,628 7,805 4,244.4 1.8 - 93,941 54,882.8 1.7 -
Measles 0 0 0 0 0 0 1 0 1 3 1 57 39 31.2 1.3 - 99 182.8 0.5 -
Mumps 0 3 0 18 3 0 0 2 26 27 33 306 200 91.4 2.2 - 632 358.6 1.8 -
Pertussis 12 167 5 64 76 0 72 38 434 448 601 5,493 2,833 3,627.6 0.8 - 16,816 20,504.0 0.8 -
Pneumococcal disease (invasive) 1 29 4 9 8 1 27 11 90 72 66 547 364 323.6 1.1 - 1,759 1,644.8 1.1 -
Poliovirus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Rotavirus NN 31 57 100 23 3 NN 56 NN NN NN 1,498 1,000 N/A N/A 362.6 3,007 N/A N/A -
Rubella 0 1 0 0 0 0 0 0 1 0 1 7 4 4.2 1.0 - 16 26.6 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 1 3 2 1.4 1.4 - 5 4.2 1.2 -
Varicella zoster (chickenpox) 3 NN 2 4 12 2 66 12 101 79 93 1,109 635 471.8 1.3 - 3,108 2,224.2 1.4 453.8
Varicella zoster (shingles) 18 NN 10 0 71 0 98 56 253 329 298 3,443 1,987 1,402.6 1.4 83.0 7,818 5,333.4 1.5 603.6
Varicella zoster (unspecified) 12 NN 0 289 39 9 311 91 751 654 579 7,166 4,182 2,876.8 1.5 128.4 16,030 11,445.4 1.4 348.3
Vectorborne diseases
Barmah Forest virus infection 0 7 2 10 1 0 1 2 23 22 15 192 119 563.2 0.2 - 313 1,658.0 0.2 -
Chikungunya virus infection 0 0 0 0 0 0 0 0 0 1 1 26 12 21.2 0.6 - 105 84.0 1.3 -
Dengue virus infection 0 8 0 2 1 0 2 5 18 41 85 587 250 587.6 0.4 - 1,551 1,681.8 0.9 -
Flavivirus unspecified (unspecified) 0 1 0 0 0 0 0 0 1 0 7 11 4 11.6 0.3 - 66 25.0 2.6 -
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 1.8 0.0 -

Malaria

0 3 2 4 0 0 2 2 13 10 19 174 92 64.6 1.4 - 350 335.4 1.0 -
Murray Valley encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0.0 - 0 1.0 0.0 -
Ross River virus infection 0 69 6 209 23 3 21 51 382 371 115 5,682 2,665 2,128.4 1.3 - 6,778 5,451.8 1.2 -
West Nile/Kunjin virus infection 0 0 0 0 0 0 0 1 1 0 0 3 3 0.0 0.0 - 3 1.0 3.0 0.6
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 0 3 0 0 0 0 3 2 0 11 7 3.2 2.2 - 24 20.8 1.2 -
Leptospirosis 0 0 1 6 0 0 0 0 7 7 6 78 36 35.0 1.0 - 143 99.0 1.4 -
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 0 0 0 0 0 0 0 0 0 0 9 2 6.8 0.3 - 25 49.2 0.5 -
Q fever 0 7 0 6 0 0 0 1 14 22 23 226 118 125.4 0.9 - 535 474.4 1.1 -
Tularaemia 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.2 0.0 -
Other bacterial infections
Legionellosis 0 5 0 6 1 1 4 4 21 18 18 179 108 99.6 1.1 - 384 407.2 0.9 -
Leprosy 0 0 0 0 0 0 0 0 0 0 0 3 1 2.6 0.4 - 18 11.8 1.5 -
Meningococcal disease (invasive) 0 0 0 3 0 1 4 0 8 4 8 114 59 40.4 1.5 2.4 286 189.0 1.5 37.2
Tuberculosis 0 6 0 3 0 0 12 5 26 37 50 505 280 296.2 0.9 - 1,349 1,309.2 1.0 -
Totals 187 2,545 344 3,096 1,043 82 1,856 1,265 10,148 10,247 9,803 122,649 68,462        333,840       
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