Fortnight 17: 12 August to 25 August 2017

The Communicable Diseases Network Australia 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: 06 January 2017

Fortnight 17: 12 August to 25 August 2017

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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.

Influenza (laboratory confirmed)

Influenza activity at the national level continued to increase this reporting fortnight with many surveillance systems at levels comparable to the peak of the 2016 season. 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.

Invasive Meningococcal Disease (IMD)

The number of cases of IMD due to serogroup W has been increasing across most jurisdictions in Australia since 2013. 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.


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 28/05/2017 to 25/08/2017.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 25/08/2016. 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 24/08/2016 to 25/08/2017.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 25/08/2016. 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 12/08/2017 to 25/08/2017

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

1Victoria is currently experiencing a backlog in notifications.

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.

Dates used are:

  • Past Quarter (90d prior surveillance period): 14/05/2017 to 11/08/2017
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 14/05/2016 to 11/08/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 14/05/2015 to 11/08/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 14/05/2014 to 11/08/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 14/05/2013 to 11/08/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 14/05/2012 to 11/08/2012
  • Past year (365d prior surveillance period): 12/08/2017 to 11/08/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 13/08/2015 to 11/08/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 12/08/2014 to 11/08/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 12/08/2013 to 11/08/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 12/08/2012 to 11/08/2013
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 13/08/2011 to 11/08/2012
  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 1Past
Quarter
2Quarterly
Rolling
5 year
mean
*Ratio
Past
Quarter
/5 year
mean
Exceeds
Quarterly
rolling
mean +2
SD by
3Past
Year
4Yearly
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 3 1 0 0 1 5 1 6 93 35 37.6 0.9 - 141 171.6 0.8 -
Hepatitis B (unspecified) 4 90 0 32 3 0 58 20 207 214 252 3,914 1,403 1,632.8 0.9 - 5,911 6,487.4 0.9 -
Hepatitis C (newly acquired)1 0 0 0 5 0 0 0 0 5 23 26 398 134 151.0 0.9 - 640 601.4 1.1 -
Hepatitis C (unspecified)1 4 153 4 99 2 15 25 40 342 359 394 6,595 2,489 2,414.2 1.0 - 10,450 9,946.6 1.1 -
Hepatitis D 0 2 0 1 0 0 0 0 3 2 3 29 9 13.6 0.7 - 49 48.4 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 -
Campylobacteriosis1 11 NN 14 174 106 24 30 123 482 595 967 14,034 4,196 4,402.2 1.0 - 23,205 18,739.8 1.2 -
Cryptosporidiosis 2 17 2 9 8 0 18 5 61 94 83 3,953 708 584.4 1.2 - 5,062 3,641.6 1.4 -
Haemolytic uraemic syndrome (HUS) 0 0 0 1 0 0 0 0 1 0 0 10 1 4.2 0.2 - 18 17.8 1.0 -
Hepatitis A 0 5 0 1 0 0 0 0 6 9 4 102 37 34.8 1.1 - 150 182.8 0.8 -
Hepatitis E 0 0 0 2 0 0 0 0 2 3 0 45 16 8.8 1.8 - 55 40.4 1.4 -
Listeriosis 0 0 0 1 1 0 0 1 3 0 3 48 15 12.8 1.2 - 77 79.4 1.0 -
Paratyhoid 0 0 0 0 0 0 1 0 1 3 2 41 10 13.2 0.8 - 63 75.6 0.8 -
STEC 0 5 0 0 7 0 1 2 15 17 10 312 99 34.0 2.9 16.4 489 148.0 3.3 256.1
Salmonellosis1 9 59 13 69 41 11 79 86 367 413 400 11,978 2,823 2,701.6 1.0 - 16,731 14,759.4 1.1 -
Shigellosis 0 14 15 11 8 1 12 5 66 56 56 1,086 466 213.4 2.2 42.2 1,565 842.6 1.9 76.6
Typhoid Fever 0 2 0 0 0 0 0 0 2 2 2 98 18 18.4 1.0 - 133 122.0 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 1.0 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 0.0 0.0 -
Sexually transmissible infections
Chlamydial infection 55 913 44 761 247 2 0 460 2,482 2,792 3,297 54,186 19,200 20,011.6 1.0 - 81,449 83,381.4 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 infection1 8 266 47 184 49 5 163 141 863 968 1,029 18,837 6,469 4,205.8 1.5 52.8 27,401 16,580.6 1.7 4,409.0
Syphilis < 2 years 0 26 13 29 7 0 19 15 109 138 148 2,612 970 581.0 1.7 - 3,814 2,142.8 1.8 217.5
Syphilis > 2 years or unspecified duration 0 4 0 10 1 0 78 4 97 89 68 1,439 539 447.0 1.2 - 2,135 1,730.2 1.2 -
Syphilis - congenital 0 0 0 0 0 0 0 0 0 0 1 4 1 1.2 0.8 - 5 3.8 1.3 -
Vaccine preventable diseases
Diphtheria 0 0 0 0 0 0 0 0 0 1 0 4 2 0.6 3.3 - 8 2.2 3.6 1.2
Haemophilus influenzae type b 0 0 0 0 0 0 1 0 1 1 2 9 4 7.4 0.5 - 14 17.6 0.8 -
Influenza (laboratory confirmed)1 671 21,859 146 10,993 3,032 522 842 525 38,590 28,460 13,319 111,124 98,284 29,016.4 3.4 43,076.9 160,428 57,929.6 2.8 47,202.5
Measles 0 0 0 0 0 0 0 3 3 1 0 62 6 42.4 0.1 - 93 179.0 0.5 -
Mumps 0 0 11 12 5 0 0 3 31 43 20 509 206 88.4 2.3 10.6 689 382.2 1.8 -
Pertussis 6 201 0 41 55 1 69 63 436 505 682 8,295 2,968 3,813.4 0.8 - 16,096 19,647.6 0.8 -
Pneumococcal disease (invasive)1 0 33 3 30 9 4 30 14 123 152 103 1,241 747 591.6 1.3 27.5 1,899 1,622.0 1.2 -
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 141 2 127 83 4 NN 12 369 307 74 3,363 1,964 693.6 2.8 852.6 4,414 3,438.8 1.3 436.1
Rubella 0 0 0 0 0 0 0 0 0 1 0 10 4 7.6 0.5 - 13 24.0 0.5 -
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 4 1 0.2 5.0 - 6 4.0 1.5 -
Varicella zoster (chickenpox)1 3 NN 2 7 16 1 1 38 68 83 139 1,666 587 596.6 1.0 - 2,961 2,270.8 1.3 124.0
Varicella zoster (shingles)1 7 NN 12 0 72 8 6 50 155 232 287 5,023 1,552 1,341.4 1.2 - 7,874 5,472.4 1.4 416.0
Varicella zoster (unspecified)1 12 NN 0 306 34 8 0 94 454 423 633 10,812 4,186 2,966.4 1.4 63.5 16,178 11,742.4 1.4 42.1
Vectorborne diseases
Barmah Forest virus infection 0 5 0 5 0 0 1 0 11 8 8 298 119 312.4 0.4 - 378 1,613.4 0.2 -
Chikungunya virus infection 0 3 0 0 0 0 0 0 3 6 3 48 22 23.4 0.9 - 120 84.8 1.4 -
Dengue virus infection 0 4 0 4 2 0 0 1 11 27 70 766 177 409.8 0.4 - 1,231 1,761.0 0.7 -
Flavivirus unspecified (unspecified) 0 1 0 0 0 0 0 0 1 0 0 16 5 6.2 0.8 - 53 26.8 2.0 -
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 1 1 0.6 1.7 - 1 1.8 0.6 -

Malaria

0 4 0 3 0 0 0 2 9 10 11 239 71 85.4 0.8 - 337 335.0 1.0 -
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 10 2 36 4 0 3 30 85 95 48 6,529 1,001 715.6 1.4 - 7,290 5,444.0 1.3 -
West Nile/Kunjin virus infection 0 0 0 0 0 0 0 0 0 0 0 4 1 0.2 5.0 - 4 1.0 4.0 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 1 0 0 0 0 0 0 1 2 1 13 5 5.2 1.0 - 20 20.8 1.0 -
Leptospirosis 0 1 0 1 0 0 0 0 2 6 3 106 33 25.6 1.3 - 141 97.6 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 1 0 1 0 0 0 0 2 0 1 14 5 8.6 0.6 - 26 45.8 0.6 -
Q fever 0 6 0 5 4 0 0 0 15 22 19 331 109 115.6 0.9 - 535 479.6 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 3 0 3 2 0 1 1 10 11 9 250 84 100.0 0.8 - 375 409.4 0.9 -
Leprosy 0 0 0 0 0 0 0 0 0 0 0 4 2 4.0 0.5 - 14 12.2 1.1 -
Meningococcal disease (invasive) 0 6 0 3 3 1 5 4 22 19 16 209 101 57.8 1.7 5.8 324 185.8 1.7 71.7
Tuberculosis 1 23 0 11 0 0 10 9 54 37 53 834 320 307.0 1.0 - 1,374 1,310.8 1.0 1.2
Totals 793 23,858 330 12,980 3,802 607 1,453 1,752 45,575 36,230 22,252 271,598 152,205       402,440      
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