Case of measles acquired in Bali
1 September 2017
SA Health has been notified of a case of measles in a 28 year old female from metropolitan Adelaide. The case was in the settings listed below whilst infectious and people in these settings at the specified times may have been exposed:
- Campbelltown Tennis Club park area, Emery Road, Campbelltown, from 12.45 p.m. until 2.30 p.m. on Saturday 26 August.
- Malvern Uniting Church, 44 Marlborough St, Malvern, from 10.30 a.m. until 12.30 p.m. on Sunday 27 August.
- Yue Kee Grocery, 16 Field St, Adelaide from 12.15 p.m. until 1.00 p.m. on Sunday 27 August.
- Thanh Thanh Vietnamese Restaurant, 18 Field St, Adelaide from 12.15 p.m. until 1.15 p.m. on Sunday 27 August.
- Windsor Village Medical Centre, 1 Longview Road, Windsor Gardens, from 9.45 a.m. until 10.45 a.m. on Monday 28 August, and from 10.30 a.m. until 11.30 a.m. on Tuesday 29 August.
- Windsor Village Pharmacy, 1 Longview Road, Windsor Gardens, from 10.00 a.m. until 10.45 a.m. on Monday 28 August.
- Modbury Hospital main entrance and emergency department, from 10.15 a.m. until 5.00 p.m. on Thursday 31 August.
The illness is characterised by:
- a descending morbilliform rash
- fever present at the time of rash onset.
Transmission, incubation and infectious period
Measles is transmitted via respiratory aerosols that remain a risk to others for up to 30 minutes after the person has left the area.
The incubation period is about 10 days (range 7 to 18 days) to the onset of prodromal symptoms and about 14 days to rash appearance.
The infectious period is from 4 days before to 4 days after the appearance of the rash.
Doctors with patients suspected of having measles are asked to:
- Notify urgently any patient with suspected measles to the CDCB on 1300 232 272 (24 hours/7 days). Do not wait for laboratory confirmation.
- Arrange urgent laboratory testing through SA Pathology. Take throat swabs in viral transport medium for measles PCR (preferred specimen) and urine for measles PCR (yellow top container).
- Isolate suspected and confirmed measles cases and exclude from child-care/ school/ workplace for at least 4 days after rash appearance.
- Ensure all household and other contacts are protected against measles as indicated in the Australian Immunisation Handbook.
- Minimise transmission.
Ways to minimise transmission
Minimise transmission of measles:
- Examine patients suspected of having measles in their own homes wherever possible.
- Ensure the patient is only seen by practice staff who have confirmed immunity to measles.
- Ensure suspected cases do not use the waiting room, and conduct the consultation in a room that can be left vacant for at least 30 minutes afterwards.
- Treat all people who attend the rooms at the same time as and up to 30 minutes after the infectious patient as contacts.
- Two doses of a measles containing vaccine are highly effective at preventing measles. Offer measles vaccine (unless contraindicated, for example in pregnant women or immunosuppression) to all potentially susceptible persons who attend your practice.
- Measles vaccine should be considered in susceptible persons prior to overseas travel.
- Many people born in the late 1960s to mid-1980s may have only received one measles vaccine.
See the following pages for more information:
For all enquires please contact the CDCB on 1300 232 272 (24 hours/7 days)