The Australian Government has scrapped a billion dollar coronavirus vaccine agreement with Australian biotech company CSL Limited to supply 51 million doses of a Covid-19 vaccine being developed by the University of Queensland after several trial participants returned positive HIV test results. 

The University of Queensland has abruptly ended its trials for coronavirus vaccine the Australian government had ordered in a $1 billion deal for 51 million doses. The deal was terminated after participants returned positive HIV test results over fears that vaccine mishap would damage the public's confidence in the COVID-19 vaccination program.