Measles case in Adelaide

16 February 2024

SA Health has been notified of a case of measles in a one-year old child who has recently returned from Pakistan. This is the first case in South Australia this year, with three cases reported last year. The case was in the settings listed below whilst infectious. People in these settings at the specified times may have been exposed:

  • Flight QF685 from Melbourne to Adelaide, on Thursday 15 February
  • Adelaide Airport, on Thursday 15 February between 3:45 pm and 4:45 pm
  • Women’s and Children’s Hospital Emergency Department, between 10:00 pm on Thursday 15 February and 4:00 am on Friday 16 February

Measles is a highly contagious viral infection 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 illness is characterised by cough, coryza, conjunctivitis, a descending morbilliform rash, and fever present at the time of rash onset. The infectious period is from 24 hours prior to onset of the prodrome until 4 days after the onset 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.
  • At the time of consultation, take a throat swab in viral transport media (preferred specimen) and if possible, urine in a yellow top container for measles PCR, and arrange urgent laboratory testing through SA Pathology. To reduce the risk of measles transmission, do not send the patient to a laboratory collection centre.
  • Isolate suspected and confirmed measles cases and exclude from child-care/ school/ workplace for 4 days after rash appearance.
  • Ensure all household and other contacts are protected against measles (see Australian Immunisation Handbook https://immunisationhandbook.health.gov.au/vaccine-preventable-diseases/measles )
  • 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 with 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 has left the rooms as contacts.

Measles vaccination

  • 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.
  • Most people born in Australia before 1966 will have had measles in childhood and be immune (unless immunosuppressed). In Australia during the late 1960s to mid-1980s only one measles vaccine was routine, hence people born during this time may require an additional vaccine to be immune.
  • Vaccination against measles can now be given from 6 months of age in infants travelling to countries where measles is endemic or a measles outbreaks are occurring (if given <12 months, 2 subsequent doses will be required).

Further clinical information is available at www.sahealth.sa.gov.au/InfectiousDiseaseControl For all enquires please contact the CDCB on 1300 232 272 (24 hours/7 days)

Dr Louise Flood – Deputy Director, Communicable Disease Control Branch