Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Australia Increases Border, Biosecurity Measures as Coronavirus Cases Spread Phil Mercer SYDNEY - At least five people in Australia have tested positive for the coronavirus. The latest is a young Chinese student diagnosed in Sydney. Australia is increasing its border and biosecurity measures. Medical authorities are warning it is likely there will be more confirmed cases in Australia of the potentially deadly coronavirus. School children in New South Wales state have been told to stay away from class for two weeks if they have been in contact with a confirmed case of the disease. Symptoms of the virus include fever, difficulty breathing and coughing. .