Australia's notifiable diseases status, 2002: Annual report of the National Notifiable Diseases Surveillance System - Results: Table 4

The Australia’s notifiable diseases status, 2002 report provides data and an analysis of communicable disease incidence in Australia during 2002. The full report is available in 20 HTML documents. This document contains the Table 4 from the Results section. The full report is also available in PDF format from the Table of contents page.

Page last updated: 04 March 2004


This article {extract} was published in Communicable Diseases Intelligence Vol 29 No 1 March 2005 and may be downloaded as a full version PDF from the Table of contents page.



Results, continued

Summary of 2002 data, continued

Trends in notifications and rates per 100,000 population for the period 1998 to 2002 are shown in Table 4.

Table 4. Notifications and notification rates (per 100,000 population) of communicable diseases, Australia, 1998 to 2002, by state or territory

Disease
Notifications Rate per 100,000 population
1998 1999 2000 2001 2002 1998 1999 2000 2001 2002
Bloodborne diseases
Hepatitis B (incident)
265
303
398
424
390
1.4
1.6
2.1
2.2
2.0
Hepatitis B (unspecified)†,‡
6,562
7,164
7,908
8,424
6,916
35.3
38.1
41.6
43.7
35.5
Hepatitis C (incident)
350
396
391
600
434
2.3
2.6
2.5
3.8
2.8
Hepatitis C (unspecified)†,‡,§
18,075
18,653
19,647
19,586
15,981
96.4
98.3
102.2
100.5
81.3
Hepatitis D
19
27
21
20
0.1
0.2
0.1
0.1
Hepatitis (NEC)
4
0
1
2
0
<0.1
<0.1
<0.1
<0.1
0.0
Gastrointestinal diseases
Botulism
1
0
2
2
0
<0.1
0.0
<0.1
<0.1
0.0
Campylobacteriosis||
13,433
12,657
13,602
16,124
14,605
108.3
100.9
107.1
125.2
112.2
Cryptosporidiosis
1,615
3,255
8.3
16.6
Haemolytic uraemic syndrome
23
16
3
13
0.1
0.1
0.0
0.1
Hepatitis A
2,497
1,554
813
530
388
13.3
8.2
4.2
2.7
2.0
Hepatitis E
9
10
10
12
0.1
0.1
0.1
0.1
Listeriosis
55
64
66
62
59
0.3
0.3
0.3
0.3
0.3
Salmonellosis (NEC)
7,613
7,147
6,227
7,045
7,756
40.6
37.6
32.4
36.2
39.4
Shigellosis
599
547
496
562
496
4.8
4.4
3.9
2.9
2.5
SLTEC, VTEC
52
38
49
51
0.4
0.3
0.3
0.3
Typhoid
60
68
60
84
73
0.3
0.4
0.3
0.4
0.4
Quarantinable diseases
Cholera
4
3
1
4
2
<0.1
<0.1
<0.1
<0.1
<0.1
Plague
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
Viral haemorrhagic fever
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
Sexually transmissible diseases
Chlamydial infection (NEC)
11,490
14,046
17,018
20,026
24,039
92.7
74.0
88.5
102.8
122.3
Donovanosis
36
18
21
33
16
0.2
0.1
0.1
0.2
0.1
Gonococcal infection**
5,469
5,644
5,801
6,158
6,247
29.2
29.7
30.2
31.6
31.8
Syphilis††
1,683
1,849
1,791
1,421
1,627
9.0
9.7
9.3
7.3
8.3
Vaccine preventable diseases
Diphtheria
0
0
0
1
0
0.0
0.0
0.0
<0.0
<0.1
Haemophilus influenzae type b
35
40
28
26
29
0.2
0.2
0.1
0.1
0.1
Invasive pneumococcal disease
1,681
2,271
8.6
11.5
Laboratory-confirmed influenza
1,286
3,665
7
18.6
Measles
288
238
107
141
31
1.5
1.3
0.6
0.7
0.2
Mumps
182
184
214
114
69
1.0
1.2
1.4
0.6
0.4
Pertussis
5,791
4,417
5,964
9,515
5,388
30.9
23.3
31.0
48.8
27.4
Poliomyelitis
0
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Rubella‡‡
753
377
323
263
255
4.0
2.0
1.7
1.3
1.3
Tetanus
8
2
6
3
3
0.0
0.0
0.0
0.0
0.0
Vectorborne diseases
Arbovirus infection NEC
88
62
55
36
22
0.5
0.3
0.3
0.2
0.1
Barmah Forest virus infection
529
638
644
1,141
896
2.8
3.4
3.3
5.9
4.6
Dengue
579
132
216
176
219
3.1
0.7
1.1
0.9
1.1
Japanese encephalitis
0
0
0.0
Kunjin virus infection
4
0
<0.1
0.0
Malaria
660
732
962
712
466
3.5
3.9
5.0
3.7
2.4
Murray Valley encephalitis
6
2
<0.1
0.0
Ross River virus infection
3,152
4,417
4,225
3,219
1,447
16.8
23.3
22.0
16.5
7.4
Zoonoses
Anthrax
0
0
0.0
0.0
Australian bat lyssavirus
0
0
0.0
0.0
Brucellosis
45
52
27
19
40
0.2
0.3
0.1
0.1
0.2
Leptospirosis
202
323
245
245
155
1.1
1.7
1.3
1.3
0.8
Ornithosis
64
84
103
131
199
0.7
0.9
1.1
0.7
1.0
Lyssavirus (NEC)
0
0
0.0
0.0
Q fever
560
515
579
696
761
3.0
2.7
3.0
3.6
3.9
Other bacterial infections
Invasive meningococcal infection
480
590
622
677
684
2.6
3.1
3.2
3.5
3.5
Legionellosis
262
249
474
307
318
1.4
1.3
2.5
1.6
1.6
Leprosy
3
6
4
5
3
0.02
0.03
0.02
0.03
0.0
Tuberculosis
960
1,146
1,052
989
975
5.1
6.0
5.5
5.1
5.0
Total
82,836
84,420
90,184
104,187
100,278

* Analysis by date of onset, except for hepatitis B and hepatitis C unspecified, where analysis is by report date. Date of onset is a composite of three components: (i) the true onset date from a clinician, if available, (ii) the date the laboratory test was ordered, or (iii) the date reported to NNDSS.

† Unspecified hepatitis includes cases with hepatitis in whom the duration of illness cannot be determined.

‡ The analysis was performed by report date.

Includes hepatitis C incident in the Northern Territory and Queensland.

&#9553; Notified as 'foodborne disease' or 'gastroenteritis in an institution' in New South Wales.

Infections with Shiga-like toxin (verotoxin) producing Escherichia coli (SLTEC/VTEC).

** Northern Territory, Queensland, South Australia, Victoria and Western Australia: includes gonococcal neonatal ophthalmia.

†† Includes 14 cases of congenital syphilis, one from New South Wales and 13 from the Northern Territory.

‡‡ Includes congenital rubella.

NN Not notifiable.

NEC Not elsewhere classified.

-Elsewhere classified

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During 2001 nine diseases were added to the list of nationally notifiable diseases while four were removed. Although the first full-year of notifications of the newly added diseases was received in 2002, the total number of notifications was lower by 4 per cent than in 2001 (Figure 2).

Figure 2. Trends in notifications received by the National Notifiable Diseases Surveillance System, Australia, 1991 to 2002

Figure 2. Trends in notifications received by the National Notifiable Diseases Surveillance System, Australia, 1991 to 2002

In 2002, sexually transmitted infections were the most frequently notified diseases (31,933 reports, 32% of total notifications) followed by gastrointestinal diseases (26,708 reports, 27% of total notifications) and bloodborne diseases (23,741, 24%) (Figure 3). By contrast, in 2001, bloodborne diseases were the most frequently notified diseases.

Figure 3. Notifications to the National Notifiable Diseases Surveillance System, Australia, 2002, by disease category*

Figure 3. Notifications to the National Notifiable Diseases Surveillance System, Australia, 2002, by disease category*

* Excluding quarantinable diseases (n=5)

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The major changes in communicable disease notifications in 2002 are shown in Figure 4, as the ratio of notifications in 2002 to the mean number of notifications for the previous five years. Chlamydial infection and Q fever infection notifications in 2002 were highest since 1997 and surpassed the expected range (5-year mean plus two standard deviations). Notifications of hepatitis A and measles infections in 2002 were the lowest since 1997 and were below the expected range (5-year mean minus two standard deviations). Notifications for the remaining diseases were within the historical range.

Figure 4. Comparison of total notifications of selected diseases reported to the National Notifiable Diseases Surveillance System in 2002, with the previous five-year mean

Figure 4. Comparison of total notifications of selected diseases reported to the National Notifiable Diseases Surveillance System in 2002, with the previous five-year mean

* Notifications below the 5-year mean minus two standard deviations.

† Notifications above the 5-year mean plus two standard deviations.

In the financial year 2001-02, there were 91,911 hospital separations in Australian hospitals with a primary diagnosis of infectious diseases (International Classification of Diseases, version 10, Australian Modification (ICD10-AM) codes A01-B99, Australian Institute of Health and Welfare). This represents 1.4 per cent of all hospital separations in that period. A further 62,917 separations were recorded with a principal diagnosis of influenza or pneumonia (ICD10-AM J10-J18).

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