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: 02 February 2018

Fortnight 01: 01 January to 19 January 2018

PDF printable version of NNDSS report

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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 (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.


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 22/10/2017 to 19/01/2018.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 19/01/2017. 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 20/01/2017 to 19/01/2018.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 19/01/2017. 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 01/01/2018 to 19/01/2018

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): 22/10/2017 to 19/01/2018
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 22/10/2016 to 19/01/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 22/10/2015 to 19/01/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 22/10/2014 to 19/01/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 22/10/2013 to 19/01/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 22/10/2012 to 19/01/2012
  • Past year (365d prior surveillance period): 20/01/2017 to 19/01/2018
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 21/01/2016 to 19/01/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 20/01/2015 to 19/01/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 20/01/2014 to 19/01/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 20/01/2013 to 19/01/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 21/01/2012 to 19/01/2013
  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 1 0 2 0 0 0 1 4 7 7 4 31 37.8 0.8 - 144 166.8 0.9 -
Hepatitis B (unspecified) 11 101 5 37 0 0 71 21 246 230 291 246 1,289 1,456.6 0.9 - 5,902 6,435.2 0.9 -
Hepatitis C (newly acquired) 0 1 0 13 0 0 2 3 19 20 35 19 137 154.4 0.9 - 621 625.2 1.0 -
Hepatitis C (unspecified) 9 204 9 101 0 9 93 49 474 403 486 474 2,309 2,418.4 1.0 - 10,078 10,051.8 1.0 -
Hepatitis D 0 2 0 0 0 0 0 0 2 4 2 2 13 12.8 1.0 - 62 51.2 1.2 -
Gastrointestinal diseases
Botulism 0 0 0 0 1 0 0 0 1 0 0 1 1 0.0 0.0 - 1 1.4 0.7 -
Campylobacteriosis 44 1,529 27 537 189 42 477 188 3,033 1,082 1,722 3,033 7,735 5,475.0 1.4 - 23,813 19,449.2 1.2 -
Cryptosporidiosis 2 50 5 68 9 1 72 9 216 118 309 216 678 766.2 0.9 - 4,640 3,785.6 1.2 -
Haemolytic uraemic syndrome (HUS) 0 0 0 0 0 0 0 0 0 1 1 0 3 5.4 0.6 - 14 18.2 0.8 -
Hepatitis A 0 5 0 1 0 0 9 0 15 26 6 15 83 43.2 1.9 26.9 222 181.6 1.2 -
Hepatitis E 0 0 0 0 0 0 2 0 2 0 6 2 8 11.2 0.7 - 51 40.6 1.3 -
Listeriosis 0 4 0 0 0 0 2 0 6 3 4 6 18 21.4 0.8 - 73 80.6 0.9 -
Paratyhoid 0 3 0 1 0 0 0 0 4 2 2 4 21 18.2 1.2 - 63 75.8 0.8 -
STEC 0 5 0 3 14 2 3 11 38 30 41 38 142 58.2 2.4 - 483 180.0 2.7 96.9
Salmonellosis 11 291 40 268 128 23 195 119 1,075 735 1,252 1,075 3,940 3,883.6 1.0 - 16,303 15,097.8 1.1 -
Shigellosis 1 9 32 17 7 0 33 20 119 103 93 119 525 241.4 2.2 102.9 1,779 916.6 1.9 116.9
Typhoid Fever 0 2 0 1 0 0 2 1 6 10 5 6 34 27.6 1.2 - 141 121.8 1.2 -
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 1 0.0 0.0 - 2 2.4 0.8 -
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 91 1,576 76 1,308 321 36 146 585 4,139 3,438 4,615 4,139 19,644 20,237.6 1.0 - 91,807 86,808.2 1.1 -
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 29 624 67 254 58 14 495 154 1,695 1,239 1,550 1,695 6,818 4,484.8 1.5 61.1 28,545 17,591.8 1.6 2,638.9
Syphilis < 2 years 0 41 19 63 9 0 38 22 192 165 199 192 991 586.4 1.7 - 4,304 2,322.2 1.9 396.0
Syphilis > 2 years or unspecified duration 1 7 5 15 1 0 90 9 128 76 116 128 477 412.0 1.2 - 2,001 1,788.6 1.1 -
Syphilis - congenital 0 0 0 1 0 0 0 0 1 0 0 1 2 0.6 3.3 - 8 3.6 2.2 -
Vaccine preventable diseases
Diphtheria 0 0 0 1 0 0 0 0 1 1 0 1 3 1.2 2.5 - 8 3.0 2.7 -
Haemophilus influenzae type b 0 0 0 0 0 0 0 0 0 0 1 0 4 3.2 1.3 - 14 18.0 0.8 -
Influenza (laboratory confirmed) 31 620 18 675 206 20 317 150 2,037 1,161 1,723 2,037 10,682 5,442.8 2.0 - 250,173 66,653.2 3.8  122,717.7
Measles 0 0 0 0 0 0 2 1 3 1 11 3 8 37.0 0.2 - 78 174.8 0.4 -
Mumps 0 3 2 30 1 0 0 2 38 50 35 38 214 102.2 2.1 - 813 412.6 2.0 -
Pertussis 10 217 6 89 57 6 108 90 583 420 943 583 2,751 5,388.4 0.5 - 11,951 18,084.0 0.7 -
Pneumococcal disease (invasive) 2 19 1 11 3 3 17 9 65 73 66 65 393 317.2 1.2 5.7 2,056 1,619.0 1.3 196.7
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 53 8 38 32 5 NN 25 NN NN NN 161 1,449 N/A N/A - 7,004 N/A N/A 2,437.9
Rubella 0 0 0 1 0 0 0 0 1 0 1 1 1 3.8 0.3 - 11 21.2 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 1 0 0 1 1.4 0.7 - 5 4.2 1.2 -
Varicella zoster (chickenpox) 12 NN 2 2 17 2 61 21 117 155 183 117 801 670.4 1.2 - 3,066 2,358.4 1.3 -
Varicella zoster (shingles) 16 NN 31 26 108 17 128 79 405 520 450 405 2,325 1,537.0 1.5 87.8 8,871 5,791.0 1.5 704.9
Varicella zoster (unspecified) 15 NN 1 408 55 12 402 122 1,015 629 933 1,015 3,976 3,202.6 1.2 - 17,062 12,265.6 1.4 237.3
Vectorborne diseases
Barmah Forest virus infection 0 2 0 12 0 0 0 4 18 23 11 18 103 280.0 0.4 - 455 1,525.6 0.3 -
Chikungunya virus infection 0 2 0 0 0 0 0 1 3 5 4 3 32 25.6 1.3 - 99 97.4 1.0 -
Dengue virus infection 0 24 3 11 1 1 0 5 45 27 104 45 207 317.8 0.7 - 1,022 1,807.4 0.6 -
Flavivirus unspecified (unspecified) 0 0 0 1 0 0 0 0 1 0 3 1 2 4.6 0.4 - 13 34.2 0.4 -
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.0 - 1 1.8 0.6 -

Malaria

0 3 0 10 0 1 0 1 15 7 21 15 79 76.2 1.0 - 356 326.6 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 0.6 0.0 -
Ross River virus infection 0 11 7 59 5 0 10 37 129 85 831 129 554 1,153.8 0.5 - 6,700 5,541.4 1.2 -
West Nile/Kunjin virus infection 0 0 1 0 0 0 0 0 1 0 0 1 1 0.6 1.7 - 7 0.8 8.8 4.5
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 1 0 0 0 0 1 2 2 1 8 5.4 1.5 0.3 19 19.4 1.0 -
Leptospirosis 0 0 0 3 0 0 0 0 3 4 4 3 21 15.6 1.3 - 137 95.2 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 4 0 5 15.0 0.3 - 15 40.6 0.4 -
Q fever 0 8 0 12 1 0 0 2 23 20 35 23 96 120.8 0.8 - 458 499.4 0.9 -
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 5 0 4 1 1 6 2 19 22 24 19 112 101.4 1.1 - 385 409.6 0.9 -
Leprosy 0 0 0 0 0 0 0 0 0 0 0 0 5 4.2 1.2 - 10 13.2 0.8 -
Meningococcal disease (invasive) 0 5 1 6 3 0 3 3 21 11 23 21 91 47.2 1.9 4.0 384 195.6 2.0 99.2
Tuberculosis 0 20 0 8 0 0 19 3 50 84 76 50 357 344.0 1.0 - 1,373 1,308.8 1.0 -
Totals 285 5,447 366 4,098 1,227 195 2,803 1,749 16,009 10,993 16,230 16,170 69,181        503,603       
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