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: 21 July 2017

Fortnight 14: 01 July to 14 July 2017

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 New South Wales.

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, 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.

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 and New South Wales.

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 IMD in Australia. For the latest information on IMD, refer to the Department’s website.

Influenza (laboratory confirmed)

Influenza activity is increasing in the majority of Australian jurisdictions. The increase in notifications reported year to date is due to an increase in notifications reported in the first two months of the year, along with an earlier season onset in some regions of Australia and an increase in doctors testing for influenza.

The Australian Government Department of Health continues to monitor influenza activity and a detailed analysis of influenza activity is available on the Department's website.

Shigellosis

There have been 75 notifications of shigellosis in the last fortnight compared to 58 in the same reporting period in 2016. Of these, 31 were notified in the Northern Territory. The increase is distributed across central Australia with no focal point and mainly in Aboriginal communities. An alert has been issued to clinicians in Central Australia.


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 16/04/2017 to 14/07/2017.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 14/07/2017. 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 15/07/2016 to 14/07/2017.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 14/07/2017. 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 01/07/2017 to 14/07/2017

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): 16/04/2017 to 14/07/2017
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 16/04/2016 to 14/07/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 16/04/2015 to 14/07/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 16/04/2014 to 14/07/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 16/04/2013 to 14/07/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 16/04/2012 to 14/07/2012
  • Past year (365d prior surveillance period): 15/07/2017 to 14/07/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 16/07/2015 to 14/07/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 15/07/2014 to 14/07/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 15/07/2013 to 14/07/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 15/07/2012 to 14/07/2013
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 16/07/2011 to 14/07/2012
  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 5 0 0 1 1 7 11 5 82 37 43.2 0.9 - 144 172.8 0.8 -
Hepatitis B (unspecified) 3 62 1 34 0 4 56 21 181 210 243 3,246 1,438 1,650.2 0.9 - 5,985 6,493.6 0.9 -
Hepatitis C (newly acquired) 0 0 0 1 0 0 1 0 2 26 28 305 111 154.6 0.7 - 620 594.2 1.0 -
Hepatitis C (unspecified) 4 142 7 99 2 16 74 46 390 436 398 5,445 2,431 2,461.4 1.0 - 10,487 9,936.6 1.1 -
Hepatitis D 0 0 0 0 0 0 0 0 0 1 6 22 7 13.4 0.5 - 51 48.6 1.0 -
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 18 254 110 24 22 98 538 698 881 12,098 4,639 4,268.4 1.1 - 24,048 18,579.4 1.3 -
Cryptosporidiosis 0 16 1 18 10 3 41 3 92 146 121 3,692 1,135 943.4 1.2 - 5,118 3,605.2 1.4 -
Haemolytic uraemic syndrome (HUS) 0 0 0 0 0 0 0 0 0 0 0 9 3 4.2 0.7 - 19 17.8 1.1 -
Hepatitis A 0 0 0 0 1 0 1 2 4 5 4 79 21 32.6 0.6 - 137 182.8 0.7 -
Hepatitis E 0 1 0 0 0 0 1 0 2 3 1 35 11 9.0 1.2 - 48 40.4 1.2 -
Listeriosis 0 2 0 1 0 0 0 0 3 5 0 44 19 18.6 1.0 - 77 79.8 1.0 -
Paratyhoid 0 0 0 0 0 0 0 0 0 0 2 34 7 17.0 0.4 - 63 74.2 0.8 -
STEC 0 2 0 0 15 0 1 1 19 11 17 261 88 35.2 2.5 26.3 474 142.2 3.3 261.2
Salmonellosis 9 92 15 103 28 7 114 61 429 419 545 10,772 3,585 3,419.6 1.0 - 17,139 14,645.4 1.2 -
Shigellosis 1 5 31 13 4 0 10 11 75 86 58 882 437 204.2 2.1 39.9 1,525 821.2 1.9 80.5
Typhoid Fever 0 1 0 1 0 0 1 1 4 4 2 91 29 22.6 1.3 - 134 123.0 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 1.4 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 0.0 0.0 -
Sexually transmissible infections
Chlamydial infection 44 919 66 877 201 2 0 439 2,548 3,256 3,078 45,616 20,233 20,607.2 1.0 - 82,572 83,304.8 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 11 272 59 197 45 4 207 139 934 1,041 894 15,923 6,866 4,293.0 1.6 705.9 27,346 16,272.4 1.7 5,034.9
Syphilis < 2 yearsᵡ 1 24 15 42 4 0 4 11 101 141 134 2,115 964 560.6 1.7 15.1 3,684 2,089.8 1.8 152.6
Syphilis > 2 years or unspecified duration 0 6 4 12 1 0 64 3 90 90 80 1,186 504 443.0 1.1 - 2,101 1,712.8 1.2 -
Syphilis - congenital 0 0 0 0 0 0 0 0 0 1 0 4 2 0.4 5.0 0.5 6 3.8 1.6 -
Vaccine preventable diseases
Diphtheria 0 0 0 0 0 0 0 0 0 0 0 3 2 0.2 10.0 0.9 9 1.8 5.0 3.9
Haemophilus influenzae type b 0 0 0 0 0 0 0 0 0 1 0 6 3 5.2 0.6 - 14 17.4 0.8 -
Influenza (laboratory confirmed) 59 3,430 24 1,417 1,265 69 1,323 191 7,778 4,191 2,375 27,963 18,520 7,865.6 2.4 3,191.8 103,512 54,949.4 1.9 -
Measles 0 0 0 1 0 0 0 0 1 0 5 58 9 33.8 0.3 - 94 181.6 0.5 -
Mumps 0 2 10 17 3 0 1 1 34 14 24 398 185 86.6 2.1 - 651 371.0 1.8 -
Pertussis 4 170 1 68 55 2 76 63 439 460 535 6,810 2,813 3,570.8 0.8 - 16,512 20,090.4 0.8 -
Pneumococcal disease (invasive) 2 40 2 20 15 3 20 10 112 99 87 836 524 464.2 1.1 - 1,795 1,626.0 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 40 25 160 30 1 NN 27 NN NN NN 2,372 1,597 N/A N/A 837.1 3,655 N/A N/A -
Rubella 0 1 0 0 0 0 0 0 1 0 0 8 2 6.6 0.3 - 14 25.2 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 3 1 0.8 1.3 - 5 4.2 1.2 -
Varicella zoster (chickenpox) 2 NN 2 4 12 1 2 25 48 89 121 1,396 587 516.4 1.1 - 3,072 2,243.8 1.4 349.7
Varicella zoster (shingles) 5 NN 13 1 47 5 3 48 122 258 251 4,240 1,803 1,391.4 1.3 - 7,831 5,405.6 1.4 539.4
Varicella zoster (unspecified) 8 NN 1 178 61 13 0 84 345 730 564 8,711 3,858 2,875.2 1.3 - 15,844 11,584.6 1.4 -
Vectorborne diseases
Barmah Forest virus infection 0 6 0 11 0 0 0 0 17 22 5 259 142 441.0 0.3 - 362 1,633.8 0.2 -
Chikungunya virus infection 0 1 0 1 0 0 0 0 2 1 0 32 9 23.8 0.4 - 109 84.2 1.3 -
Dengue virus infection 0 2 0 4 1 0 0 7 14 32 91 675 198 506.0 0.4 - 1,379 1,723.8 0.8 -
Flavivirus unspecified (unspecified) 0 0 0 0 0 0 0 0 0 0 3 12 4 7.6 0.5 - 58 25.8 2.2 -
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 1 1 0.2 5.0 - 1 1.8 0.6 -

Malaria

1 4 0 4 0 0 0 1 10 9 10 207 67 72.6 0.9 - 353 335.6 1.1 -
Murray Valley encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.0 - 0 0.8 0.0 -
Ross River virus infection 0 15 2 70 4 2 5 7 105 183 45 6,234 1,807 1,235.0 1.5 - 7,123 5,447.6 1.3 -
West Nile/Kunjin virus infection 0 0 0 0 0 0 0 0 0 0 0 4 4 0.0 0.0 - 4 1.0 4.0 1.6
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 0 0 0 0 0 0 0 1 10 7 5.2 1.3 - 20 20.6 1.0 -
Leptospirosis 0 0 0 2 1 0 0 0 3 0 3 88 27 31.8 0.9 - 134 99.2 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 10 1 8.4 0.1 - 24 47.2 0.5 -
Q fever 0 3 0 12 0 0 0 1 16 13 18 277 111 117.8 0.9 - 538 477.0 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 0 0 0 0 1 6 21 21 222 112 102.2 1.1 - 382 408.8 0.9 -
Leprosy 0 0 0 0 0 0 0 1 1 1 2 4 2 3.8 0.5 - 15 12.2 1.2 -
Meningococcal disease (invasive) 0 5 2 4 4 0 3 2 20 13 8 157 70 44.6 1.6 - 308 186.2 1.7 66.0
Tuberculosis 2 13 0 7 0 1 14 10 47 39 45 673 295 288.4 1.0 - 1,385 1,307.0 1.1 17.8
Totals 168 5,281 299 3,638 1,919 157 2,045 1,316 14,540 12,766 10,711 163,610 75,328        346,982       
top of page