Australia’s notifiable disease status, 2013: Annual report of the National Notifiable Diseases Surveillance System: Part 2

The National Notifiable Diseases Surveillance System monitors the incidence of an agreed list of communicable diseases in Australia. This report analyses notifications during 2013.

Page last updated: 16 October 2015

Results

There were 224,434 communicable disease notifications received by NNDSS in 2013 (Table 3).

Table 3: Notifications to the National Notifiable Diseases Surveillance System, Australia, 2013, by disease category rank order
Disease category Number %
Sexually transmissible infections
100,949
45.0
Vaccine preventable diseases
59,630
26.6
Gastrointestinal diseases
32,536
14.5
Bloodborne diseases
17,919
8.0
Vectorborne diseases
10,831
4.8
Other bacterial diseases
1,932
0.9
Zoonoses
634
0.3
Quarantinable diseases
3
<0.1
Total
224,434
100.0

In 2013, the most frequently notified diseases were sexually transmissible infections (100,949 notifications, 45% of total notifications), vaccine preventable diseases (59,630 notifications, 26.6% of total notifications), and gastrointestinal diseases (32,535 notifications, 14.5% of total notifications).

There was a decrease of 8% compared with the total number of notifications in 2012 (Figure 2). The decrease can largely be attributed to the 2013 influenza season, which commenced later and occurred over a shorter period and was considered a more moderate season when compared with the 2012 season.

Figure 2: Notifications received by the National Notifiable Diseases Surveillance System, Australia, 1991 to 2013

bar chart. text description follows

Text version of Figure 2 (TXT 1 KB)

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Notifications and notification rates per 100,000 for each disease in 2013, by state or territory, are shown in Table 4 and Table 5 respectively. Notifications and rates per 100,000 for the period 2008 to 2013 are shown in Table 6.

Table 4: Notified cases of communicable diseases, Australia, 2013, by state or territory
Disease State or territory Aust.
ACT NSW NT Qld SA Tas. Vic. WA
* Newly acquired hepatitis and syphilis < 2 years duration includes cases where the infection was determined to be acquired within 24 months prior to diagnosis.

† Unspecified hepatitis and syphilis includes cases where the duration of infection could not be determined or is greater than 24 months.

‡ In Queensland, includes newly acquired hepatitis C cases.

§ Infection with Shiga toxin/verotoxin producing Escherichia coli.

|| Includes Chlamydia trachomatis identified from cervical, rectal, urine, urethral, throat and eye samples, except for South Australia, which reports only cervical, urine and urethral specimens; the Northern Territory and Western Australia exclude ocular infections. From 1 July 2013 the case definition changed to exclude all ocular infections.

¶ The national case definitions for chlamydial, gonococcal and syphilis diagnoses include infections that may be acquired through a non-sexual mode (especially in children – e.g. perinatal infections, epidemic gonococcal conjunctivitis).

** Data for all states and territories are reported by diagnosis date, except Queensland, which is reported by notification receive date.

†† In the Australian Capital Territory, Murray Valley encephalitis virus infection and Kunjin virus infection are combined under Murray Valley encephalitis virus infection.

‡‡ Only invasive meningococcal disease is nationally notifiable. However the Australian Capital Territory and New South Wales also report conjunctival cases.

HPAIH Highly pathogenic avian influenza in humans.

NEC Not elsewhere classified.

NN Not notifiable.
Bloodborne diseases
Hepatitis B (newly acquired)*
4
33
6
45
8
3
34
39
172
Hepatitis B (unspecified)
107
2,506
325
906
286
55
1,850
944
6,979
Hepatitis C (newly acquired)*
14
43
1
NN
62
19
145
123
407
Hepatitis C (unspecified)†,‡
170
3,503
256
2,469
414
210
2,130
1,156
10,308
Hepatitis D
0
9
1
13
4
0
22
4
53
Gastrointestinal diseases
Botulism
0
2
0
0
0
0
2
0
4
Campylobacteriosis
373
NN
199
3,831
1,719
696
5,953
1,927
14,698
Cryptosporidiosis
39
1,107
89
766
135
74
1,264
372
3,846
Haemolytic uraemic syndrome
0
9
1
2
1
0
2
0
15
Hepatitis A
4
62
0
45
11
0
53
14
189
Hepatitis E
1
16
0
2
0
0
8
4
31
Listeriosis
1
29
3
9
2
2
22
8
76
Salmonellosis
279
3,456
385
3,207
982
249
2,954
1,279
12,791
Shigellosis
10
149
108
73
29
3
115
69
556
STEC,VTEC§
3
25
0
83
53
1
11
4
180
Typhoid fever
5
59
0
24
8
0
44
10
150
Quarantinable diseases
Cholera
0
2
0
0
0
0
1
0
3
HPAIH
0
0
0
0
0
0
0
0
0
Plague
0
0
0
0
0
0
0
0
0
Rabies
0
0
0
0
0
0
0
0
0
Severe acute respiratory syndrome
0
0
0
0
0
0
0
0
0
Smallpox
0
0
0
0
0
0
0
0
0
Viral haemorrhagic fever
0
0
0
0
0
0
0
0
0
Yellow fever
0
0
0
0
0
0
0
0
0
Sexually transmitted infections
Chlamydial infection||,¶
1,269
20,827
2,998
19,497
5,183
1,538
19,467
11,747
82,526
Donovanosis
0
0
0
0
0
0
0
0
0
Gonococcal infection
114
4,231
1,955
2,732
855
69
3,014
1,972
14,942
Syphilis – congenital
0
3
1
1
0
0
0
2
7
Syphilis < 2 years duration*,¶,**
10
598
22
328
56
19
652
83
1,768
Syphilis > 2 years or unspecified duration†,¶
9
417
94
306
104
11
564
201
1,706
Vaccine preventable diseases
Diptheria
0
0
0
1
1
0
0
0
2
Haemophilus influenzae type b
0
9
0
7
0
0
4
0
20
Influenza (laboratory confirmed)
570
8,398
481
5,509
4,825
297
5,854
2,395
28,329
Measles
1
34
0
52
16
0
41
14
158
Mumps
1
90
6
41
5
5
24
45
217
Pertussis
228
2,336
108
3,808
811
513
2,898
1,639
12,341
Pneumococcal disease (invasive)
14
467
58
272
112
37
393
193
1,546
Poliomyelitis
0
0
0
0
0
0
0
0
0
Rubella
1
12
0
6
2
0
3
1
25
Rubella – congenital
0
0
0
0
1
0
1
0
2
Tetanus
0
2
0
0
1
0
0
1
4
Vaccine preventable diseases (cont’d)
Varicella zoster (chickenpox)
20
NN
97
280
386
29
871
359
2,042
Varicella zoster (shingles)
52
NN
246
45
1,899
247
1,223
1,305
5,017
Varicella zoster (unspecified)
138
NN
10
5,337
105
89
3,018
1,230
9,927
Vectorborne diseases
Arbovirus infection (NEC)
0
0
1
20
0
0
0
0
21
Barmah Forest virus infection
6
431
405
2,224
74
3
72
1,024
4,239
Dengue virus infection
10
300
56
489
75
19
414
478
1,841
Japanese encephalitis virus infection
0
0
0
2
1
0
0
1
4
Kunjin virus infection††
0
0
0
3
0
0
0
0
3
Malaria
13
88
22
108
8
11
88
76
414
Murray Valley encephalitis virus infection
0
0
0
1
0
0
0
0
1
Ross River virus infection
4
503
300
1,787
167
8
171
1,368
4,308
Zoonoses
Anthrax
0
0
0
0
0
0
0
0
0
Australia bat lyssavirus infection
0
0
0
1
0
0
0
0
1
Brucellosis
0
3
0
11
0
0
0
0
14
Leptospirosis
0
12
4
67
2
0
9
1
95
Lyssavirus infection (NEC)
0
0
0
0
0
0
0
0
0
Ornithosis
0
8
0
1
0
0
34
4
47
Q fever
0
167
1
243
17
0
41
8
477
Tularaemia
0
0
0
0
0
0
0
0
0
Other bacterial diseases
Legionellosis
1
105
6
165
63
6
66
93
505
Leprosy
1
2
2
1
1
0
3
3
13
Meningococcal infection‡‡
3
48
2
33
20
3
25
15
149
Tuberculosis
18
440
41
156
69
8
383
150
1,265
Total
3,493
50,540
8,290
55,005
18,573
4,224
53,943
30,361
224,434

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Table 5: Notification rates per 100,000 of nationally notifiable communicable diseases, Australia, 2013, by state or territory
Disease State or territory Aust.
ACT NSW NT Qld SA Tas. Vic. WA
* Newly acquired hepatitis and syphilis < 2 years duration includes cases where the infection was determined to be acquired within 24 months prior to diagnosis..

† Unspecified hepatitis and syphilis includes cases where the duration of infection could not be determined or is greater than 24 months.

‡ In Queensland, includes newly acquired hepatitis C cases.

§ Infection with Shiga toxin/verotoxin producing Escherichia coli.

|| Includes Chlamydia trachomatis identified from cervical, rectal, urine, urethral, throat and eye samples, except for South Australia, which reports only cervical, urine and urethral specimens; the Northern Territory and Western Australia exclude ocular infections. From 1 July 2013 the case definition changed to exclude all ocular infections.

¶ The national case definitions for chlamydial, gonococcal and syphilis diagnoses include infections that may be acquired through a non-sexual mode (especially in children – e.g. perinatal infections, epidemic gonococcal conjunctivitis).

** Data for all states and territories are reported by diagnosis date, except Queensland, which is reported by notification receive date.

†† In the Australian Capital Territory, Murray Valley encephalitis virus infection and Kunjin virus infection are combined under Murray Valley encephalitis virus infection.

‡‡ Only invasive meningococcal disease is nationally notifiable. However the Australian Capital Territory and New South Wales also report conjunctival cases.

HPAIH Highly pathogenic avian influenza in humans.

NEC Not elsewhere classified.

NN Not notifiable.
Bloodborne diseases
Hepatitis B (newly acquired)*
1.0
0.4
2.5
1.0
0.5
0.6
0.6
1.5
0.7
Hepatitis B (unspecified)
28.0
33.8
134.7
19.5
17.1
10.7
32.2
37.5
30.2
Hepatitis C (newly acquired)*
3.7
0.6
0.4
NN
3.7
3.7
2.5
4.9
2.2
Hepatitis C (unspecified)†,‡
44.6
47.3
106.1
53.0
24.8
40.9
37.1
45.9
44.6
Hepatitis D
0.1
0.4
0.3
0.2
0.4
0.2
0.2
Gastrointestinal diseases
Botulism
<0.1
<0.1
<0.1
Campylobacteriosis
97.8
NN
82.5
82.3
102.9
135.6
103.7
76.5
93.5
Cryptosporidiosis
10.2
14.9
36.9
16.5
8.1
14.4
22.0
14.8
16.6
Haemolytic uraemic syndrome
0.1
0.4
<0.1
0.1
<0.1
0.1
Hepatitis A
1.0
0.8
1.0
0.7
0.9
0.6
0.8
Hepatitis E
0.3
0.2
<0.1
0.1
0.2
0.1
Listeriosis
0.3
0.4
1.2
0.2
0.1
0.4
0.4
0.3
0.3
Salmonellosis
73.1
46.6
159.6
68.9
58.8
48.5
51.5
50.7
55.3
Shigellosis
2.6
2.0
44.8
1.6
1.7
0.6
2.0
2.7
2.4
STEC,VTEC§
0.8
0.3
1.8
3.2
0.2
0.2
0.2
0.8
Typhoid fever
1.3
0.8
0.5
0.5
0.8
0.4
0.6
Quarantinable diseases
Cholera
<0.1
<0.1
<0.1
HPAIH
Plague
Rabies
Severe acute respiratory syndrome
Smallpox
Viral haemorrhagic fever
Yellow fever
Sexually transmissible infections
Chlamydial infection||,¶
332.7
281.1
1243.0
418.8
310.2
299.7
339.2
466.0
356.7
Donovanosis
Gonococcal infection
29.9
57.1
810.5
58.7
51.2
13.4
52.5
78.2
64.6
Syphilis – congenital
<0.1
0.4
<0.1
0.1
<0.1
Syphilis < 2 years duration*,¶,**
2.6
8.1
9.1
7.0
3.4
3.7
11.4
3.3
7.6
Syphilis > 2 years or unspecified duration†,¶
2.4
5.6
39.0
6.6
6.2
2.1
9.8
8.0
7.4
Vaccine preventable diseases
Diptheria
<0.1
0.1
<0.1
Haemophilus influenzae type b
0.1
0.2
0.1
0.1
Influenza (laboratory confirmed)
149.4
113.3
199.4
118.3
288.8
57.9
102.0
95.0
122.5
Measles
0.3
0.5
1.1
1.0
0.7
0.6
0.7
Mumps
0.3
1.2
2.5
0.9
0.3
1.0
0.4
1.8
0.9
Pertussis
59.8
31.5
44.8
81.8
48.5
100.0
50.5
65.0
53.3
Pneumococcal disease (invasive)
3.7
6.3
24.0
5.8
6.7
7.2
6.8
7.7
6.7
Poliomyelitis
Rubella
0.3
0.2
0.1
0.1
0.1
<0.1
0.11
Rubella – congenital
0.1
<0.1
<0.1
Tetanus
<0.1
0.1
<0.1
<0.1
Varicella zoster (chickenpox)
5.2
NN
40.2
6.0
23.1
5.7
15.2
14.2
13.0
Varicella zoster (shingles)
13.6
NN
102.0
1.0
113.7
48.1
21.3
51.8
31.9
Varicella zoster (unspecified)
36.2
NN
4.1
114.7
6.3
17.3
52.6
48.8
63.1
Vectorborne diseases
Arbovirus infection (NEC)
0.4
0.4
0.1
Barmah Forest virus infection
1.6
5.8
167.9
47.8
4.4
0.6
1.3
40.6
18.3
Dengue virus infection
2.6
4.0
23.2
10.5
4.5
3.7
7.2
19.0
8.0
Japanese encephalitis virus infection
<0.1
0.1
<0.1
<0.1
Kunjin virus infection††
0.1
<0.1
Malaria
3.4
1.2
9.1
2.3
0.5
2.1
1.5
3.0
1.8
Murray Valley encephalitis virus infection
<0.1
<0.1
Ross River virus infection
1.0
6.8
124.4
38.4
10.0
1.6
3.0
54.3
18.6
Zoonoses
Anthrax
Australia bat lyssavirus infection
<0.1
<0.1
Brucellosis
<0.1
0.2
0.1
Leptospirosis
0.2
1.7
1.4
0.1
0.2
<0.1
0.4
Lyssavirus infection (NEC)
Ornithosis
0.1
<0.1
0.6
0.2
0.2
Q fever
2.3
0.4
5.2
1.0
0.7
0.3
2.1
Tularaemia
Other bacterial diseases
Legionellosis
0.3
1.4
2.5
3.5
3.8
1.2
1.2
3.7
2.2
Leprosy
0.3
<0.1
0.8
<0.1
0.1
0.1
0.1
0.1
Meningococcal infection‡‡
0.8
0.6
0.8
0.7
1.2
0.6
0.4
0.6
0.6
Tuberculosis
4.7
5.9
17.0
3.4
4.1
1.6
6.7
6.0
5.5

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Table 6: Notified cases and notification rate for communicable diseases, Australia, 2008 to 2013
Disease Number of notified cases 5-year mean Ratio
(2013: 5-year mean)
Notification rate per 100,000
2008 2009 2010 2011 2012 2013 2008 2009 2010 2011 2012 2013
* Newly acquired hepatitis and syphilis < 2 years duration includes cases where the infection was determined to be acquired within 24 months prior to diagnosis.

† Unspecified hepatitis and syphilis includes cases where the duration of infection could not be determined or is greater than 24 months.

‡ In Queensland, includes newly acquired hepatitis C cases.

§ Infection with Shiga toxin/verotoxin producing Escherichia coli.

|| Includes Chlamydia trachomatis identified from cervical, rectal, urine, urethral, throat and eye samples, except for South Australia, which reports only cervical, urine and urethral specimens; the Northern Territory and Western Australia exclude ocular infections. From 1 July 2013 case definition changed to exclude all ocular infections.

¶ The national case definitions for chlamydial, gonococcal and syphilis diagnoses include infections that may be acquired through a non–sexual mode (especially in children – e.g. perinatal infections, epidemic gonococcal conjunctivitis).

** Data for all states and territories are reported by diagnosis date, except Queensland which is reported by notification receive date.

†† In the Australian Capital Territory, Murray Valley encephalitis virus infection and Kunjin virus infection are combined under Murray Valley encephalitis virus infection.

‡‡ Only invasive meningococcal disease is nationally notifiable. However the Australian Capital Territory and New South Wales also report conjunctival cases.

HPAIH Highly pathogenic avian influenza in humans.

NEC Not elsewhere classified.

NN Not notifiable.
Bloodborne diseases
Hepatitis B (newly acquired)*
261
253
230
193
198
172
227.0
0.8
1.2
1.2
1.0
0.9
0.9
0.7
Hepatitis B (unspecified)
6,377
7,127
6,957
6,559
6,538
6,979
6,711.6
1.0
29.7
32.9
31.6
29.4
28.8
30.2
Hepatitis C (newly acquired)*
364
399
400
412
486
407
412.2
1.0
2.1
2.3
2.3
2.3
2.7
2.2
Hepatitis C (unspecified)†,‡
10,801
11,104
11,086
9,882
9,641
10,308
10,502.8
1.0
50.2
51.2
50.3
44.2
42.4
44.6
Hepatitis D
41
35
36
39
31
53
36.4
1.5
0.2
0.2
0.2
0.2
0.1
0.2
Gastrointestinal diseases
Botulism
0
1
0
2
0
4
0.6
6.7
<0.1
<0.1
<0.1
Campylobacteriosis
15,561
16,104
16,990
17,725
15,655
14,698
16,407.0
0.9
107.4
110.0
114.1
117.2
101.5
93.5
Cryptosporidiosis
2,001
4,624
1,481
1,811
3,142
3,846
2,611.8
1.5
9.3
21.3
6.7
8.1
13.8
16.6
Haemolytic uraemic syndrome
32
13
9
13
20
15
17.4
0.9
0.1
0.1
<0.1
0.1
0.1
0.1
Hepatitis A
276
563
267
145
166
189
283.4
0.7
1.3
2.6
1.2
0.6
0.7
0.8
Hepatitis E
44
33
37
41
35
31
38.0
0.8
0.2
0.2
0.2
0.2
0.2
0.1
Listeriosis
68
92
71
70
93
76
78.8
1.0
0.3
0.4
0.3
0.3
0.4
0.3
Salmonellosis
8,297
9,503
11,912
12,276
11,256
12,791
10,648.8
1.2
38.6
43.8
54.1
55.0
49.5
55.3
Shigellosis
830
616
552
493
548
556
607.8
0.9
3.9
2.8
2.5
2.2
2.4
2.4
STEC,VTEC§
98
128
80
95
111
180
102.4
1.8
0.5
0.6
0.4
0.4
0.5
0.8
Typhoid fever
106
115
96
135
124
150
115.2
1.3
0.5
0.5
0.4
0.6
0.5
0.6
Quarantinable diseases
Cholera
4
5
3
6
5
3
4.6
0.7
<0.1
<0.1
<0.1
<0.1
<0.1
<0.1
HPAIH
0
0
0
0
0
0
0.0
Plague
0
0
0
0
0
0
0.0
Rabies
0
0
0
0
0
0
0.0
Severe acute respiratory syndrome
0
0
0
0
0
0
0.0
Smallpox
0
0
0
0
0
0
0.0
Viral haemorrhagic fever
0
0
0
0
0
0
0.0
Yellow fever
0
0
0
2
0
0
0.4
<0.1
Sexually transmissible infections
Chlamydial infection||,¶
58,456
63,013
74,320
80,918
82,903
82,526
71,922.0
1.1
271.9
290.5
337.3
362.2
364.8
356.7
Donovanosis
2
1
1
0
1
0
1.0
<0.1
<0.1
<0.1
<0.1
Gonococcal infection
7,678
8,279
10,324
12,100
13,842
14,942
10,444.6
1.4
35.7
38.2
46.9
54.2
60.9
64.6
Syphilis – congenital
6
3
3
7
1
7
4.0
1.8
<0.1
<0.1
<0.1
<0.1
<0.1
<0.1
Syphilis < 2 years duration*,¶,**
1,323
1,314
1,118
1,318
1,570
1,768
1,328.6
1.3
6.2
6.1
5.1
5.9
6.9
7.6
Syphilis > 2 years or unspecified duration†,¶
1,359
1,445
1,329
1,315
1,381
1,706
1,365.8
1.2
6.8
7.2
6.5
6.4
6.1
7.4
Vaccine preventable diseases
Diptheria
0
0
0
4
0
2
0.8
2.5
<0.1
<0.1
Haemophilus influenzae type b
25
19
24
13
15
20
19.2
1.0
0.1
0.1
0.1
0.1
0.1
0.1
Influenza (laboratory confirmed)
9,173
59,028
13,466
27,228
44,571
28,329
30,693.2
0.9
42.7
272.1
61.1
121.9
196.1
122.5
Measles
65
104
70
194
199
158
126.4
1.3
0.3
0.5
0.3
0.9
0.9
0.7
Mumps
286
166
98
155
200
217
181.0
1.2
1.3
0.8
0.4
0.7
0.9
0.9
Pertussis
14,286
30,163
34,821
38,727
24,074
12,341
28,414.2
0.4
66.5
139.1
158.0
173.4
105.9
53.3
Pneumococcal disease (invasive)
1,626
1,557
1,640
1,883
1,823
1,546
1,705.8
0.9
7.6
7.2
7.4
8.4
8.0
6.7
Poliomyelitis
0
0
0
0
0
0
0.0
Rubella
36
27
44
58
37
25
40.4
0.6
0.2
0.1
0.2
0.3
0.2
0.1
Rubella – congenital
0
0
0
0
1
2
0.2
10.0
<0.1
<0.1
Tetanus
4
3
2
3
7
4
3.8
1.1
<0.1
<0.1
<0.1
<0.1
<0.1
<0.1
Varicella zoster (chickenpox)
1,807
1,796
1,792
2,100
1,977
2,042
1,894.4
1.1
19.7
12.3
12.0
13.9
12.8
13.0
Varicella zoster (shingles)
2,341
2,779
3,047
4,025
4,507
5,017
3,339.8
1.5
25.6
19.0
20.5
26.6
29.2
31.9
Varicella zoster (unspecified)
4,410
6,761
7,269
7,689
8,437
9,927
6,913.2
1.4
48.2
46.2
48.8
50.8
54.7
63.1
Vectorborne diseases
Arbovirus infection (NEC)
12
6
14
18
9
21
11.8
1.8
0.1
<0.1
0.1
0.1
<0.1
0.1
Barmah Forest virus infection
2,080
1,473
1,470
1,863
1,730
4,239
1,723.2
2.5
9.7
6.8
6.7
8.3
7.6
18.3
Dengue virus infection
561
1,402
1,228
821
1,540
1,841
1,110.4
1.7
2.6
6.5
5.6
3.7
6.8
8.0
Japanese encephalitis virus infection
1
0
0
0
1
4
0.4
10.0
<0.1
<0.1
<0.1
Kunjin virus infection††
1
2
2
2
0
3
1.4
2.1
<0.1
<0.1
<0.1
<0.1
<0.1
Malaria
529
504
404
418
345
414
440.0
0.9
2.5
2.3
1.8
1.9
1.5
1.8
Murray Valley encephalitis virus infection††
2
4
0
16
1
1
4.6
0.2
<0.1
<0.1
0.1
<0.1
<0.1
Ross River virus infection
5,612
4,742
5,129
5,136
4,686
4,308
5,061.0
0.9
26.1
21.9
23.3
23.0
20.6
18.6
Zoonoses
Anthrax
0
0
1
0
0
0
0.2
<0.1
Australia bat lyssavirus infection
0
0
0
0
0
1
0.0
<0.1
Brucellosis
46
32
21
38
30
14
33.4
0.4
0.2
0.1
0.1
0.2
0.1
0.1
Leptospirosis
111
141
131
215
115
95
142.6
0.7
0.5
0.7
0.6
1.0
0.5
0.4
Lyssavirus infection (NEC)
0
0
0
0
0
0
0.0
Ornithosis
102
65
61
91
76
47
79.0
0.6
0.5
0.3
0.3
0.4
0.3
0.2
Q fever
378
313
336
350
362
477
347.8
1.4
1.8
1.4
1.5
1.6
1.6
2.1
Tularaemia
0
0
0
2
0
0
0.4
<0.1
Other bacterial diseases
Legionellosis
272
301
306
360
383
505
324.4
1.6
1.3
1.4
1.4
1.6
1.7
2.2
Leprosy
11
5
10
10
7
13
8.6
1.5
0.1
<0.1
<0.1
<0.1
<0.1
0.1
Meningococcal infection‡‡
287
260
228
242
222
149
247.8
0.6
1.3
1.2
1.0
1.1
1.0
0.6
Tuberculosis
1,217
1,306
1,367
1,384
1,323
1,265
1,319.4
1.0
5.7
6.0
6.2
6.2
5.8
5.5
Total
159,271
237,729
210,283
238,606
244,424
224,434

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Data completeness

In 2013, sex and age at onset was complete for 99.8% of notifications in NNDSS (Table 7).

Table 7: Completeness of National Notifiable Diseases Surveillance System data, Australia, 2013, by state or territory
  State or territory
  ACT NSW NT Qld SA Tas. Vic. WA Aust.
* For many diseases onset date in unknown, but is calculated using the diagnosis date derived by the diagnosis date algorithm.
Total notifications
3,493
50,541
8,290
55,009
18,573
4,224
53,943
30,361
224,434
Sex
Unknown/ missing
0
59
0
0
76
0
169
1
305
Per cent complete
100.0
99.8
100.0
100.0
99.0
100.0
99.7
>99.9
99.8
Age at onset*
Unknown/ missing
0
20
0
0
76
0
182
1
279
Per cent complete
100.0
>99.9
100.0
100.0
99.0
100.0
99.7
>99.9
99.8

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Indigenous status

Indigenous status is usually obtained from medical notification and completeness varies by disease and by state and territory. This reflects differences in notification requirements (i.e. depending on the jurisdiction, some diseases are primarily or completely notified by pathology laboratories rather than clinicians) and the fact that it is not possible to follow up all cases for diseases with a large volume of notifications and/or not requiring specific case based public health action.

Indigenous status was complete in 47.6% of all notifications reported to NNDSS in 2013. Indigenous status was complete in 94.6% of data reported in the Northern Territory, 92% in Western Australia and 90.7% in South Australia. In the remaining jurisdictions, Indigenous status completeness ranged from 18.2% to 47.3% (Table 8).

Table 8: Indigenous status completeness of National Notifiable Diseases Surveillance System data, Australia, 2013, by state or territory
  State or territory
  ACT NSW NT Qld SA Tas. Vic. WA Aust.
Total notifications
3,493
50,541
8,290
55,009
18,573
4,224
53,943
30,361
224,434
Indigenous status
Unknown/ missing
2,507
41,325
446
29,741
1,720
2,227
37,139
2,442
117,547
Per cent complete
28.2
18.2
94.6
45.9
90.7
47.3
31.2
92.0
47.6

Data completeness on Indigenous status also varied by disease as summarised in Appendix 3. In 2013, CDNA set target thresholds of 95% completeness for 18 priority diseases (17 notifiable to NNDSS and one, HIV, which is notified to the Kirby Institute) (Table 9) and 80% completeness for the remainder of the notifiable diseases. Of all diseases there were 33 diseases that equalled or exceeded 80% completeness for Indigenous status and 33% (11/33) were priority diseases.

Table 9: Percentage completeness of priority diseases for Indigenous status of National Notifiable Diseases Surveillance System data, Australia, 2013, by state or territory
Priority disease ACT NSW NT Qld SA Tas. Vic. WA Aust.
NDP – No data provided
Dengue virus (locally acquired)
No cases
100.0
No cases
91.4
100.0
No cases
100.0
50.0
91.5
Donovanosis
No cases
No cases
No cases
No cases
No cases
No cases
No cases
No cases
No cases
Gonococcal infection
100.0
56.0
98.1
62.0
90.9
95.7
61.0
99.9
71.9
Haemophilus influenzae type b
No cases
100.0
No cases
85.7
No cases
No cases
75.0
No cases
90.0
Leprosy
100.0
100.0
100.0
100.0
100.0
No cases
100.0
100.0
100.0
Measles
100.0
100.0
No cases
76.9
100.0
No cases
92.7
100.0
90.5
Meningococcal disease (invasive)
100.0
100.0
100.0
97.0
100.0
100.0
84.0
100.0
96.6
Pertussis <5 years
87.5
94.6
100.0
67.2
100.0
100.0
78.8
98.7
85.6
Shigellosis
100.0
85.9
99.1
76.7
100.0
33.3
91.3
98.6
90.6
Tuberculosis
94.4
100.0
100.0
100.0
100.0
100.0
100.0
100.0
99.9
Hepatitis A
100.0
100.0
No cases
82.2
100.0
No cases
98.1
100.0
95.2
Hepatitis B (newly acquired)
100.0
81.8
100.0
55.6
87.5
100.0
94.1
100.0
83.1
Hepatitis C (newly acquired)
100.0
81.4
100.0
No cases
95.2
89.5
66.2
100.0
84.8
Syphilis – congenital
No cases
100.0
100.0
100.0
No cases
No cases
No cases
100.0
100.0
HIV
NDP
NDP
NDP
NDP
NDP
NDP
NDP
NDP
NDP
Pneumococcal disease <5 years
100.0
100.0
100.0
97.7
85.7
100.0
89.7
100.0
96.8
Pneumococcal disease ≥ 50 years
100.0
99.7
100.0
88.8
97.0
100.0
89.7
100.0
95.1
Syphilis < 2 years
100.0
92.5
100.0
94.5
80.4
100.0
85.9
100.0
90.6

In 2013, 7 of the 17 priority diseases notified to NNDSS had an Indigenous completeness that exceeded 95% (hepatitis A, meningococcal infection, pneumococcal disease < 5 years, pneumococcal disease ≥ 50 years, syphilis – congenital, leprosy, and tuberculosis).

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