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National Notifiable Diseases Surveillance System, 2004
Annual report
Table 17. Outbreaks and clusters of measles, Australia,* 2004
State or territory Month of onset Number of linked cases
(including index case)
Place of acquisition of infection in index
case
New South Wales Mar 2 Overseas
New South Wales Mar 4 Overseas
Victoria Apr 2 Overseas
Victoria July 4 Victoria
Victoria Nov 3 Overseas
Western Australia Nov 6 Not identifi ed
* There were no cases of measles reported in 2004 in the Australian Capital Territory, Queensland or Tasmania
The vaccination status was recorded for 25 of the
42 cases born after the introduction of measles vaccination
in 1970: 19 were unvaccinated, four were
partially vaccinated and two were fully vaccinated
for age. Both ‘fully vaccinated for age’ cases had
only received a single dose of measles-mumpsrubella
(MMR) vaccine: one was a 1-year-old child
who was fully vaccinated for age and the other was
a 16-year-old who should be regarded as partially
vaccinated.
Mumps
The highest rates were in the 25–29 year age group
(1.3 cases per 100,000 population). The rate for the
0–4 year age group (0.6 cases per 100,000 population)
was similar to that seen in 2003.
Trends in age group notifi cation rates for mumps
(Figure 43) show an increase in the rates in the
25–34 year age group since 2003. Increases in
mumps in England and Wales, predominately
among older teenagers and young adults who had
not received two doses of MMR vaccine, have also
been observed. 16
Case defi nition – Mumps
Only confirmed cases are notifi ed.
Confirmed case: Requires isolation of
mumps virus or detection of mumps virus by
nucleic acid testing or IgG seroconversion
or signifi cant increase in antibodies or a
signifi cant increase in antibody level, or a
fourfold or greater rise in titre to mumps virus
(except where there has been recent mumps
vaccination) OR detection of mumps specifi c
IgM antibody (in the absence of recent mumps
vaccination) AND a clinically compatible illness
characterised by swelling of the parotid or
other salivary glands lasting two days or more
without other apparent cause OR a clinically
compatible illness AND an epidemiological link
to a laboratory confi rmed case.
Figure 43. Trends in notification rates for
mumps, Australia, 2004, by age group
Rate per 100,000 population
4
3
3
2
2
1
1
0
1999 2000 2001 2002 2003 2004
Year