Schools around Australia may be closed to try and contain an outbreak of swine flu.
The number of confirmed cases has risen to 13 with a boy from Melbourne the latest case to be confirmed.
Earlier, it was confirmed an Adelaide woman caught the virus from her teenage daughter.
Schools in Victoria and South Australia are closed because of outbreaks.
But Health Minister Nicola Roxon says the virus does not appear to be as dangerous as first thought.
The ABC reports health officials are awaiting test results on around 20 suspected cases.