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: 07 December 2017

Fortnight 24: 18 November to 01 December 2017

PDF printable version of NNDSS report

If you are unable to download any of the above files please email OHP Webmaster.

Infectious syphilis

Increases in infectious syphilis notifications are attributed to an on-going outbreak occurring in young Aboriginal and Torres Strait Islander people residing in northern and central Australia and continued increases among men who have sex with men (MSM) in urban areas of Victoria and NSW.

Outbreak in remote 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 (QLD), following a steady decline at a national level in remote communities. Subsequent increases in infectious syphilis notifications were reported in the Northern Territory (NT) in 2013, Western Australia (WA) in 2014 and South Australia (SA) in 2016, following sustained periods of low notification rates. The outbreak is of significant public health concern given the: elevated rates of infectious syphilis among women of child-bearing age, increasing the risk of congenital syphilis; and the concomitant risk of HIV transmission.

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

Increases among MSM

Since 2010, increases in notifications of infectious syphilis have been reported in MSM, predominately 20-39 years of age, residing in urban areas of Victoria (VIC) and NSW.

Invasive Meningococcal Disease (IMD)

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

Influenza (laboratory confirmed)

Influenza activity at the national level continued to decline this reporting fortnight after reaching a peak in mid-August. Surveillance systems indicate that national activity levels have returned to or are approaching baseline levels. A summary of the 2017 Australian influenza season is available on the Department's website. During the inter-seasonal period, influenza activity will continue to be monitored nationally.

Hepatitis A

There have been 71 notifications of hepatitis A in the last quarter, which is 2.7 times the quarterly rolling 5 year mean (36.4). Of these, 12 notifications occurred in the last fortnight, compared to 11 in the previous fortnight, and 7 in the same fortnight in 2016. Seven of these cases were reported to have acquired their infection in Australia, (4 South Australia, 2 Victoria and 1 New South Wales) and 3 of the 7 identified as men who have sex with men.

Shigellosis

There have been 463 notifications of shigellosis in the last quarter which is 2.3 times the quarterly rolling 5 year mean (2016). A major contributor to this increase is the ongoing outbreak in central Australia, which is predominantly Shigella flexneri 2B (114 notifications). Of these,109 were Indigenous Australians (56 in the Northern Territory, 35 in Western Australia, 14 in South Australia and 4 in Queensland).


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 20/08/2017 to 01/12/2017.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 01/12/2016. 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 18/11/2016 to 01/12/2017.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 01/12/2016. 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 18/11/2017 to 01/12/2017

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

Dates used are:

  • Past Quarter (90d prior surveillance period): 03/09/2017 to 01/12/2017
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 03/09/2016 to 01/12/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 03/09/2015 to 01/12/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 03/09/2014 to 01/12/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 03/09/2013 to 01/12/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 03/09/2012 to 01/12/2012
  • Past year (365d prior surveillance period): 02/12/2017 to 01/12/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 03/12/2015 to 01/12/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 02/12/2014 to 01/12/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 02/12/2013 to 01/12/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 02/12/2012 to 01/12/2013
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 03/12/2011 to 01/12/2012
  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 2 1 0 0 1 4 2 7 128 27 38.4 0.7 - 139 168.8 0.8 -
Hepatitis B (unspecified) 12 66 0 29 2 1 69 19 198 189 222 5,506 1,446 1,619.6 0.9 - 5,940 6,438.6 0.9 -
Hepatitis C (newly acquired) 0 0 0 13 1 0 0 2 16 26 27 585 163 160.2 1.0 - 642 619.2 1.0 -
Hepatitis C (unspecified) 4 123 4 119 0 10 72 50 382 344 416 9,323 2,439 2,555.4 1.0 - 10,212 9,996.4 1.0 -
Hepatitis D 0 0 0 1 0 0 0 0 1 0 4 52 19 13.0 1.5 - 57 49.8 1.1 -
Gastrointestinal diseases
Botulism 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 1.6 0.0 -
Campylobacteriosis 23 NN 8 370 151 47 268 136 1,003 899 1,209 20,682 5,717 5,176.8 1.1 - 22,970 19,177.4 1.2 -
Cryptosporidiosis 0 23 1 28 4 1 30 8 95 83 146 4,520 534 509.6 1.0 - 4,914 3,720.8 1.3 -
Haemolytic uraemic syndrome (HUS) 0 0 0 0 1 0 0 0 1 0 0 14 4 4.4 0.9 - 19 17.6 1.1 -
Hepatitis A 0 2 0 1 5 0 4 0 12 11 7 177 71 36.4 2.0 2.7 193 182.0 1.1 -
Hepatitis E 0 0 0 0 0 0 0 0 0 2 1 52 6 7.2 0.8 - 54 40.2 1.3 -
Listeriosis 0 0 0 1 0 0 0 0 1 4 6 65 16 18.6 0.9 - 73 81.4 0.9 -
Paratyhoid 1 0 0 0 0 0 0 0 1 6 3 53 12 12.2 1.0 - 60 76.6 0.8 -
STEC 0 3 0 1 17 0 1 2 24 16 18 441 126 50.8 2.5 0.4 495 165.6 3.0 186.6
Salmonellosis 2 109 27 141 50 14 94 82 519 542 544 15,263 3,044 2,934.6 1.0 - 16,774 14,911.4 1.1 -
Shigellosis 0 7 26 12 3 2 24 10 84 73 57 1,581 463 201.6 2.3 84.5 1,690 896.4 1.9 67.7
Typhoid Fever 0 1 0 0 0 0 1 0 2 8 4 125 22 22.0 1.0 - 136 121.4 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 1 1 0.6 1.7 - 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 0.0 0.0 -
Sexually transmissible infections
Chlamydial infection 63 1,015 45 905 203 9 0 425 2,665 2,845 3,441 80,478 18,274 20,675.8 0.9 - 86,431 85,287.4 1.0 -
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 11 333 38 188 44 3 261 100 978 947 1,065 26,271 6,577 4,414.4 1.5 183.2 28,159 17,249.2 1.6 3,268.5
Syphilis < 2 years 0 22 8 34 1 0 30 16 111 139 127 3,916 1,002 596.6 1.7 24.0 4,176 2,262.0 1.8 358.6
Syphilis > 2 years or unspecified duration 0 1 3 6 1 0 70 10 91 48 80 1,854 462 448.0 1.0 - 1,981 1,766.0 1.1 -
Syphilis - congenital 0 1 0 0 0 0 0 0 1 0 0 8 2 1.8 1.1 - 8 3.8 2.1 -
Vaccine preventable diseases
Diphtheria 0 0 0 0 0 0 0 0 0 0 1 5 1 1.0 1.0 - 7 2.6 2.7 -
Haemophilus influenzae type b 0 0 0 0 0 0 0 0 0 1 2 13 4 3.6 1.1 - 14 17.8 0.8 -
Influenza (laboratory confirmed) 20 390 12 417 218 21 167 137 1,382 1,866 1,612 235,279 91,742 23,143.8 4.0 42,207.9 237,710 65,957.4 3.6 110,802.3
Measles 0 0 0 0 0 0 0 0 0 0 1 84 21 50.0 0.4 - 98 174.6 0.6 -
Mumps 0 7 2 27 1 0 0 0 37 37 8 728 208 105.6 2.0 - 762 404.0 1.9 -
Pertussis 3 168 9 46 57 0 80 64 427 496 993 11,556 2,991 5,351.2 0.6 - 13,141 18,619.6 0.7 -
Pneumococcal disease (invasive) 0 14 2 8 10 4 23 7 68 85 70 1,965 658 438.6 1.5 127.6 2,067 1,619.8 1.3 179.2
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 72 0 69 78 13 NN 15 NN NN NN 6,505 2,905 N/A N/A 806.5 6,755 N/A N/A 2,447.1
Rubella 0 0 0 0 0 0 0 0 0 0 0 11 1 4.4 0.2 - 12 22.4 0.5 -
Rubella congenital 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0.0 - 0 0.8 0.0 -
Tetanus 0 0 0 0 0 0 0 0 0 0 1 4 0 1.6 0.0 - 4 4.4 0.9 -
Varicella zoster (chickenpox) 11 NN 3 4 16 3 28 26 91 123 207 2,774 826 687.4 1.2 - 3,078 2,320.6 1.3 6.0
Varicella zoster (shingles) 16 NN 13 1 79 10 48 57 224 297 344 7,812 2,059 1,480.0 1.4 - 8,498 5,679.4 1.5 573.4
Varicella zoster (unspecified) 8 NN 0 328 53 12 279 77 757 600 668 16,133 4,338 3,189.6 1.4 91.6 17,295 12,088.2 1.4 737.2
Vectorborne diseases
Barmah Forest virus infection 0 5 1 9 0 0 1 0 16 16 12 416 97 274.8 0.4 - 441 1,551.6 0.3 -
Chikungunya virus infection 0 1 0 1 0 0 4 0 6 4 11 92 31 24.0 1.3 - 103 95.8 1.1 -
Dengue virus infection 0 15 0 5 1 1 0 5 27 21 52 984 169 266.6 0.6 - 1,088 1,808.8 0.6 -
Flavivirus unspecified (unspecified) 0 0 0 1 0 0 0 0 1 0 5 15 1 6.4 0.2 - 20 32.8 0.6 -
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 1 0 0.6 0.0 - 1 1.8 0.6 -

Malaria

0 1 0 2 0 0 0 3 6 8 8 334 71 76.6 0.9 - 360 328.2 1.1 -
Murray Valley encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.8 0.0 -
Ross River virus infection 0 19 8 43 3 0 7 29 109 77 93 7,258 571 794.0 0.7 - 7,670 5,408.0 1.4 -
West Nile/Kunjin virus infection 0 0 0 0 0 0 0 0 0 0 0 6 1 0.4 2.5 - 6 1.0 6.0 3.6
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 2 0 2 0 0 0 0 4 1 0 18 5 5.4 0.9 - 20 19.6 1.0 -
Leptospirosis 0 0 0 2 0 0 0 0 2 5 2 129 18 14.0 1.3 - 137 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 1 3 17 4 15.8 0.3 - 18 41.6 0.4 -
Q fever 0 5 0 6 4 1 0 0 16 10 27 432 79 125.2 0.6 - 480 491.4 1.0 -
Tularaemia 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.0 0.0 -
Other bacterial infections
Legionellosis 0 3 0 0 0 0 6 0 9 28 11 355 97 110.6 0.9 - 384 411.8 0.9 -
Leprosy 0 0 0 0 1 0 0 0 1 0 2 7 3 3.8 0.8 - 8 13.0 0.6 -
Meningococcal disease (invasive) 0 2 1 1 0 1 4 2 11 17 3 362 148 56.4 2.6 61.6 384 191.0 2.0 125.6
Tuberculosis 0 10 0 4 0 0 9 7 30 52 49 1,241 347 355.8 1.0 - 1,377 1,303.8 1.1 -
Totals 174 2,420 211 2,827 1,005 153 1,580 1,290 9,413 9,929 11,569 465,631 147,823        487,062       
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