A six-month-old baby girl has been hospitalised in South Australia after contracting meningococcal.
South Australia Health said the child, from Adelaide, has an invasive strain of the disease identified as serotype W.
Fifteen people have been identified as close contacts of the baby.
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"The Department for Health and Wellbeing has identified multiple people who had contact with the baby, and 15 people have been directed to receive clearance antibiotics," SA Health said in a statement.
This is the fourth case of invasive meningococcal disease reported in the state this year. This compares to two cases recorded at the same time last year.
SA Health said of the four cases, two are serogroup B and two are serogroup W.
In March, a 29-year-old Adelaide man died after contracting the disease.
https://twitter.com/SAHealth/status/1399213954870640642?ref_src=twsrc%5EtfwLast week, two cases of the disease were detected on Sydney's Northern Beaches, prompting a warning from health authorities.
Symptoms include nausea, vomiting, neck stiffness, headache, joint pain, sensitivity to light, or a sudden fever.
A rash of red-purple spots or bruises is often seen with the illness but in some cases a rash doesn't appear, or it could be the last symptom to appear.
