Fortnight 09: 22 April to 05 May 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: 11 May 2017

Fortnight 09: 22 April to 05 May 2017

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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.

Pneumococcal disease (invasive)

Notifications of invasive pneumococcal disease (IPD) were slightly higher in the past quarter (n=290) when compared to the quarterly rolling 5 year mean (n=251.2). A more detailed analysis of IPD notification trends currently occurring in Australia is available in the IPD quarterly report.

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.


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 05/02/2017 to 05/05/2017.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 05/05/2017. 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 06/05/2016 to 05/05/2017.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 05/05/2017. 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 22/04/2017 to 05/05/2017

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): 05/02/2017 to 05/05/2017
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 06/02/2016 to 05/05/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 05/02/2015 to 05/05/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 05/02/2014 to 05/05/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 05/02/2013 to 05/05/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 06/02/2012 to 05/05/2012
  • Past year (365d prior surveillance period): 22/04/2017 to 21/04/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 23/04/2015 to 21/04/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 22/04/2014 to 21/04/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 22/04/2013 to 21/04/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 22/04/2012 to 21/04/2013
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 23/04/2011 to 21/04/2012
  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 1 0 0 1 2 4 3 12 53 42 48.8 0.9 - 142 174.0 0.8 -
Hepatitis B (unspecified) 2 95 0 26 2 0 55 18 198 215 280 2,078 1,527 1,622.0 0.9 - 6,277 6,461.0 1.0 -
Hepatitis C (newly acquired) 2 1 0 4 1 0 0 2 10 19 22 203 141 155.2 0.9 - 652 581.6 1.1 -
Hepatitis C (unspecified) 4 120 5 60 0 6 69 37 301 337 456 3,470 2,551 2,596.4 1.0 - 10,716 9,925.4 1.1 -
Hepatitis D 0 1 0 0 0 0 0 0 1 1 2 17 13 13.4 1.0 - 55 49.6 1.1 -
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 19 NN 12 290 92 22 184 128 747 642 805 8,547 5,628 4,490.4 1.3 - 24,686 18,391.8 1.3 -
Cryptosporidiosis 8 73 4 61 18 0 70 19 253 269 264 2,923 2,330 1,682.4 1.4 - 5,257 3,487.8 1.5 -
Haemolytic uraemic syndrome (HUS) 0 0 0 0 0 0 0 1 1 0 0 7 6 4.0 1.5 - 18 18.0 1.0 -
Hepatitis A 0 0 0 0 1 0 1 1 3 4 2 63 42 61.8 0.7 - 138 184.0 0.8 -
Hepatitis E 0 0 0 0 0 0 0 0 0 4 2 26 14 11.8 1.2 - 43 41.4 1.0 -
Listeriosis 0 1 0 2 0 0 0 0 3 1 6 28 22 23.8 0.9 - 75 80.0 0.9 -
Paratyhoid 0 1 0 0 0 0 0 0 1 0 1 27 18 27.6 0.7 - 68 73.0 0.9 -
STEC 0 2 0 5 6 0 1 3 17 15 5 196 137 36.8 3.7 87.1 458 135.2 3.4 268.4
Salmonellosis 16 178 20 181 73 12 123 118 721 687 707 8,223 5,839 4,968.0 1.2 - 17,836 14,363.2 1.2 -
Shigellosis 0 9 8 18 7 1 16 4 63 38 52 542 364 229.0 1.6 - 1,473 780.8 1.9 118.8
Typhoid Fever 0 3 0 0 0 0 2 3 8 4 4 73 58 41.6 1.4 - 128 123.8 1.0 -
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 0.6 1.7 - 2 3.0 0.7 -
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 71 953 48 867 234 0 0 405 2,578 2,412 2,727 28,024 20,380 21,556.8 0.9 - 75,874 81,312.0 0.9 -
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 8 339 32 173 41 3 146 111 853 983 844 10,414 7,443 4,388.0 1.7 1,384.7 26,529 15,859.6 1.7 5,430.8
Syphilis < 2 yearsᵡ 1 23 8 38 2 0 19 9 100 117 122 1,213 870 537.8 1.6 - 3,429 1,994.4 1.7 121.6
Syphilis > 2 years or unspecified duration 1 4 4 7 0 0 37 4 57 85 77 824 613 458.4 1.3 - 2,136 1,691.6 1.3 -
Syphilis - congenital 0 0 0 0 0 0 0 0 0 0 0 1 1 0.6 1.7 - 3 3.8 0.8 -
Vaccine preventable diseases
Diphtheria 0 0 0 0 0 0 0 0 0 2 0 2 2 0.8 2.5 - 8 2.0 4.0 3.2
Haemophilus influenzae type b 0 0 0 0 0 0 0 0 0 0 1 3 2 3.6 0.6 - 15 17.8 0.8 -
Influenza (laboratory confirmed) 8 224 8 307 91 14 110 45 807 929 988 10,668 7,563 3,944.2 1.9 - 92,877 54,671.4 1.7 -
Measles 0 0 0 0 0 0 0 1 1 4 4 53 39 42.8 0.9 - 101 183.0 0.6 -
Mumps 0 2 3 12 2 0 1 0 20 37 34 249 187 105.6 1.8 - 630 351.4 1.8 -
Pertussis 12 243 5 47 37 0 70 48 462 305 603 4,602 3,005 4,032.4 0.7 - 17,119 20,786.0 0.8 -
Pneumococcal disease (invasive) 2 17 0 5 4 1 14 5 48 52 62 385 290 251.2 1.2 4.9 1,721 1,648.2 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 -
Rotavirus NN 18 14 53 18 0 NN 41 NN NN NN 958 654 N/A N/A - 2,604 N/A N/A -
Rubella 0 0 0 0 0 0 0 0 0 1 1 6 4 4.8 0.8 - 18 26.4 0.7 -
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 1 0 0 0 1 0 0 3 3 1.2 2.5 - 6 4.0 1.5 -
Varicella zoster (chickenpox) 4 NN 4 1 10 0 2 12 33 34 85 487 345 460.8 0.7 - 2,582 2,212.6 1.2 -
Varicella zoster (shingles) 5 NN 8 1 78 1 3 57 153 154 245 1,741 1,232 1,418.4 0.9 - 6,551 5,280.6 1.2 -
Varicella zoster (unspecified) 12 NN 0 283 41 3 0 83 422 374 557 5,483 3,535 2,927.0 1.2 - 15,641 11,336.4 1.4 101.2
Vectorborne diseases
Barmah Forest virus infection 0 4 2 8 0 0 0 2 16 12 14 143 108 571.0 0.2 - 298 1,678.6 0.2 -
Chikungunya virus infection 0 0 0 0 0 0 1 1 2 1 3 24 16 23.2 0.7 - 111 84.0 1.3 -
Dengue virus infection 0 9 1 4 0 0 1 10 25 23 132 492 295 634.0 0.5 - 1,664 1,647.2 1.0 -
Flavivirus unspecified (unspecified) 0 0 0 0 0 0 0 0 0 1 5 9 3 14.4 0.2 - 73 23.2 3.1 6.9
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0.0 - 0 1.8 0.0 -

Malaria

1 3 0 2 0 0 0 3 9 13 7 150 99 79.0 1.3 - 355 335.4 1.1 -
Murray Valley encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0.0 - 0 1.6 0.0 -
Ross River virus infection 0 42 7 107 22 3 50 89 320 297 218 4,855 3,275 2,599.0 1.3 - 6,238 5,451.0 1.1 -
West Nile/Kunjin virus infection 0 0 0 0 0 0 0 1 1 0 0 1 1 0.0 0.0 - 1 1.0 1.0 -
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 1 0 1 0 0 0 0 2 0 0 6 3 3.6 0.8 - 19 21.4 0.9 -
Leptospirosis 0 0 0 2 0 0 0 0 2 4 5 62 40 33.4 1.2 - 143 99.6 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 0 0 0 0 0 0 0 0 0 0 6 1 6.6 0.2 - 21 50.0 0.4 -
Q fever 0 2 0 7 1 0 0 0 10 15 23 182 126 132.8 0.9 - 529 471.4 1.1 -
Tularaemia 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.4 0.0 -
Other bacterial infections
Legionellosis 0 5 0 0 2 1 9 1 18 16 12 137 95 97.0 1.0 - 385 404.2 1.0 -
Leprosy 0 0 0 0 0 0 0 0 0 0 1 3 2 2.6 0.8 - 19 11.8 1.6 -
Meningococcal disease (invasive) 0 5 0 1 1 0 2 1 10 8 7 102 70 34.8 2.0 30.0 291 189.2 1.5 34.1
Tuberculosis 1 11 0 13 0 0 9 1 35 44 47 428 308 310.8 1.0 - 1,365 1,311.2 1.0 -
Totals 177 2,389 193 2,587 785 67 996 1,266 8,316 8,162 9,444 98,192 69,342        327,380       
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