Hospitals, aged care facilities, and schools are among the high-risk settings where workers and visitors could face rapid COVID-19 testing under an Australian plan to be developed. National cabinet on Friday agreed the federal health department and Australian Health Protection Principal Committee will work on creating a nationally consistent framework for the use of rapid antigen tests. It will guide authorities across the nation on how often the tests should be done and the implication of positive results, while also recommending high-risk settings for the screening. Australian health authorities have previously been cautious to expand the use of rapid antigen tests given they are less reliable than PCR swabs. In a further take-out from the first national cabinet meeting in more than a month, states and territories will consider changes to isolation requirements for fully vaccinated primary close contacts, including no or minimal quarantine for up to seven days. Casual contacts would only …