1. Coronavirus update 19 August - Australia locks in Oxford vaccine deal | News Breakfast  ABC News (Australia)
  2. As the day unfolded: Victoria records 222 new COVID-19 cases as Sydney hotel quarantine guard contracts virus; Australian death toll jumps to 438  The Sydney Morning Herald
  3. The ethical case for allowing medical trials that deliberately infect humans with COVID-19  The Conversation US
  4. More coronavirus-vaccine volunteers needed  BBC News
  5. First Covid-19 vaccine trial moving at a good clip, but officials still "very concerned"  CNN
  6. View Full coverage on Google News

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