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: 24 March 2017

Fortnight 05: 25 February to 10 March 2017

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Pneumococcal disease (invasive)

Notifications of invasive pneumococcal disease (IPD) were slightly higher in the past quarter (n=276) when compared to the quarterly rolling 5 year mean (n=228.0). A more detailed analysis of IPD notification trends currently occurring in Australia is available in the IPD quarterly report.

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 osf 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.

Leprosy

Since the beginning of 2016 there have been 23 notifications of leprosy reported to the NNDSS. Around 61% of these notifications were reported to have acquired their infection overseas, 22% in Australia, and no further information regarding place of acquisition was available for the remainder of cases (17%). Between 2006 and 2015, the mean annual number of notifications was 10.1 (range 6‑14).

Measles

There have been 22 cases of measles notified in 2017 as at 10 March, including 8 cases from New South Wales, 3 cases from Queensland, 3 cases from Victoria and 8 cases from Western Australia. The median age of cases is 18 years with a range of 0 years to 43 years. Ninety one per cent of cases notified this year (n=20) were either imported (n=13) or import-related (=7). For the remaining 9% of cases (n=2) a link to the primary imported case could not be established.

Of the imported cases (n=13), 3 acquired the disease in Malaysia, 3 in Indonesia, 2 in India, and one each in Thailand, Cambodia, Spain, Italy and Pakistan.

Vaccination status was known for 10 cases. Of these, 6 were not vaccinated, including 2 infants too young for vaccination; 3 were partially vaccinated having received one dose of a measles containing vaccine, and 1 was fully vaccinated having received two doses of a measles containing vaccine.

People travelling to measles endemic regions should consider their measles immunisation status as part of their travel planning.

Figure 1. Notifications of measles, Australia, 1 January 2017 – 10 March 2017, by importation status* and country.

Figure 1. Notifications of measles, Australia, 1 January 2017 – 10 March 2017, by importation status and country

* Unknown = a link to the primary imported cases could not be established.


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 11/12/2016 to 10/03/2017.
  2. The quarterly (90 day) five year rolling mean is the average of 5 intervals of 90 days up to 10/03/2017. 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 11/03/2016 to 10/03/2017.
  4. The yearly (365 day) five year rolling mean is the average of 5 intervals of 365 days up to 10/03/2017. 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 25/02/2017 to 10/03/2017

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): 11/12/2016 to 10/03/2017
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean):
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 1: 11/12/2015 to 10/03/2016
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 2: 11/12/2014 to 10/03/2015
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 3: 11/12/2013 to 10/03/2014
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 4: 11/12/2012 to 10/03/2013
  • Quarterly rolling 5Yr Mean (90d 5Yr Mean) 5: 12/12/2011 to 10/03/2012
  • Past year (365d prior surveillance period): 11/03/2017 to 10/03/2017
  • Yearly rolling 5Yr Mean (365d 5Yr Mean):
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 1: 12/03/2015 to 10/03/2016
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 2: 11/03/2014 to 10/03/2015
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 3: 11/03/2013 to 10/03/2014
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 4: 11/03/2012 to 10/03/2013
  • Yearly rolling 5Yr Mean (365d 5Yr Mean) 5: 12/03/2011 to 10/03/2012
  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 0 0 3 1 6 9 9 28 36 45.8 0.8 - 144 174.0 0.8 -
Hepatitis B (unspecified) 8 77 0 41 4 1 47 26 204 247 272 1,100 1,374 1,482.2 0.9 - 6,368 6,455.8 1.0 -
Hepatitis C (newly acquired) 0 1 0 8 0 0 0 5 14 25 28 112 151 123.8 1.2 - 659 458.6 1.4 76.0
Hepatitis C (unspecified) 6 172 10 97 3 6 35 49 378 432 549 1,906 2,420 2,399.4 1.0 - 11,076 10,089.6 1.1 258.8
Hepatitis D 0 1 0 0 1 0 0 0 2 2 4 8 12 10.8 1.1 - 56 48.6 1.2 -
Gastrointestinal diseases
Botulism 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0.0 - 0 2.0 0.0 -
Campylobacteriosis 16 NN 11 345 133 32 279 121 937 1,011 995 5,346 6,886 4,988.4 1.4 - 24,594 18,261.2 1.3 -
Cryptosporidiosis 12 187 1 139 32 1 52 30 454 375 423 1,587 1,846 1,204.2 1.5 - 5,351 3,288.0 1.6 243.2
Haemolytic uraemic syndrome (HUS) 0 0 0 1 0 0 0 0 1 0 0 2 6 5.4 1.1 - 14 18.0 0.8 -
Hepatitis A 0 2 0 3 1 0 1 0 7 7 11 39 51 68.0 0.8 - 134 183.6 0.7 -
Hepatitis E 0 1 0 0 0 0 0 0 1 1 2 13 14 12.8 1.1 - 35 41.8 0.8 -
Listeriosis 0 2 0 1 0 0 4 0 7 3 1 20 24 26.2 0.9 - 87 78.8 1.1 -
Paratyhoid 0 0 0 1 0 0 1 0 2 7 3 19 25 30.0 0.8 - 69 73.2 0.9 -
STEC 0 2 0 2 16 0 1 2 23 21 8 113 149 38.8 3.8 94.4 400 131.6 3.0 206.2
Salmonellosis 36 229 20 258 86 21 108 113 871 1,011 1,088 4,770 5,786 4,855.2 1.2 - 17,876 14,131.6 1.3 -
Shigellosis 0 3 6 14 0 1 31 10 65 66 68 340 409 259.2 1.6 - 1,436 760.2 1.9 112.9
Typhoid Fever 0 5 0 2 0 0 3 1 11 12 8 43 52 48.8 1.1 - 113 126.0 0.9 -
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 0.2 0.0 - 1 3.6 0.3 -
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 0.4 0.0 -
Sexually transmissible infections
Chlamydial infection 72 1,132 87 1,106 245 1 0 471 3,114 3,265 3,266 15,120 18,433 20,102.8 0.9 - 76,318 80,888.6 0.9 -
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 13 408 67 208 33 1 231 159 1,120 1,199 1,005 5,869 7,076 4,156.2 1.7 1,305.8 24,585 15,511.8 1.6 4,081.4
Syphilis < 2 yearsᵡ 1 24 6 38 0 0 1 18 88 132 123 621 772 497.0 1.6 - 3,257 1,931.8 1.7 77.3
Syphilis > 2 years or unspecified duration 0 6 1 13 0 1 89 3 113 102 77 459 537 405.6 1.3 9.5 2,075 1,667.8 1.2 -
Syphilis - congenital 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6 0.0 - 2 4.2 0.5 -
Vaccine preventable diseases
Diphtheria 0 0 0 0 0 0 0 0 0 0 0 0 2 0.6 3.3 0.3 7 2.4 2.9 1.6
Haemophilus influenzae type b 0 1 0 1 0 0 0 0 2 0 0 3 3 2.8 1.1 - 19 17.6 1.1 -
Influenza (laboratory confirmed) 9 316 91 501 188 19 156 51 1,331 1,407 1,301 6,426 7,995 3,033.6 2.6 2,246.1 93,192 54,035.4 1.7 -
Measles 0 2 0 2 0 0 1 0 5 2 5 22 32 49.2 0.7 - 95 184.4 0.5 -
Mumps 0 2 3 15 2 0 0 0 22 27 68 118 143 110.0 1.3 - 670 322.4 2.1 -
Pertussis 25 239 7 43 61 1 73 33 482 510 953 2,840 3,859 5,237.6 0.7 - 18,003 21,241.0 0.8 -
Pneumococcal disease (invasive) 1 14 0 8 2 0 10 4 39 55 33 205 276 228.0 1.2 4.7 1,719 1,655.0 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 15 2 61 9 0 NN 15 NN NN NN 534 710 N/A N/A - 2,593 N/A N/A -
Rubella 0 0 0 1 0 0 0 0 1 0 1 3 4 6.2 0.6 - 17 29.2 0.6 -
Rubella congenital 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0.0 - 0 0.8 0.0 -
Tetanus 0 0 0 0 0 0 0 0 0 1 1 1 1 1.4 0.7 - 6 4.0 1.5 -
Varicella zoster (chickenpox) 0 NN 4 4 13 2 1 28 52 48 95 257 365 488.2 0.7 - 2,283 2,184.8 1.0 -
Varicella zoster (shingles) 3 NN 15 3 65 3 0 54 143 183 307 932 1,245 1,379.8 0.9 - 6,089 5,178.8 1.2 -
Varicella zoster (unspecified) 4 NN 0 320 54 21 0 89 488 480 639 2,141 2,626 2,853.8 0.9 - 14,375 11,120.2 1.3 -
Vectorborne diseases
Barmah Forest virus infection 0 4 0 4 0 0 0 3 11 18 22 76 88 416.4 0.2 - 309 1,738.0 0.2 -
Chikungunya virus infection 0 0 0 2 0 0 3 3 8 1 2 18 27 25.8 1.0 - 117 83.0 1.4 -
Dengue virus infection 0 13 3 9 2 1 0 12 40 59 110 314 375 561.2 0.7 - 2,064 1,549.6 1.3 -
Flavivirus unspecified (unspecified) 0 0 0 0 0 0 0 0 0 1 5 7 9 9.0 1.0 - 91 18.6 4.9 44.3
Japanese encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6 0.0 - 0 1.8 0.0 -

Malaria

0 4 2 6 0 0 9 6 27 15 11 103 115 94.6 1.2 - 344 341.2 1.0 -
Murray Valley encephalitis virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0.0 - 0 3.8 0.0 -
Ross River virus infection 4 113 19 99 70 8 262 57 632 616 247 3,105 3,415 1,914.6 1.8 - 5,530 5,504.6 1.0 -
West Nile/Kunjin virus infection 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0.0 - 0 1.2 0.0 -
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 0.2 0.0 - 0 0.2 0.0 -
Brucellosis 0 0 0 0 0 0 0 0 0 1 1 4 6 5.6 1.1 - 19 23.0 0.8 -
Leptospirosis 0 0 0 5 0 0 0 0 5 9 5 36 43 23.0 1.9 2.5 148 104.2 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 4 4 8.6 0.5 - 20 52.4 0.4 -
Q fever 0 6 0 12 0 0 0 1 19 27 16 108 135 119.2 1.1 - 559 462.8 1.2 -
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 7 0 3 4 0 5 1 20 11 11 80 103 89.2 1.2 - 395 404.4 1.0 -
Leprosy 0 0 0 0 0 0 0 1 1 0 0 2 3 2.4 1.3 - 20 11.4 1.8 0.8
Meningococcal disease (invasive) 0 5 1 3 0 1 2 3 15 12 7 64 81 31.0 2.6 33.7 283 190.8 1.5 23.0
Tuberculosis 1 16 0 13 0 0 5 8 43 54 61 234 329 316.2 1.0 - 1,359 1,307.8 1.0 -
Totals 211 3,009 356 3,394 1,024 121 1,413 1,378 10,804 11,464 11,841 55,152 68,053        324,976       
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