Naaman Zhou, in The Guardian, 23 March 2020,
More than 300 people on board the Ruby Princess cruise ship could have already contracted coronavirus by the time it docked in Sydney, according to an expert in epidemiology. As of Tuesday, 133 people (107 in New South Wales and 26 interstate) have been diagnosed with Covid-19 after leaving the ship, which docked in Sydney’s Circular Quay on Thursday 19 March. All 2,700 passengers were allowed to disembark and return home and told to self-isolate.












