Australia on Wednesday advised its citizens not to travel overseas indefinitely in an attempt to slow the spread of the novel coronavirus.The government also announced an immediate ban on non-essential indoor social gatherings of more than 100 people. That follows a ban imposed Monday on outdoor gatherings of more than 500 people."Don't go overseas," Prime Minister Scott Morrison said at a press conference in Canberra, as the government upgraded its travel advisory for the entire world to its highest level for the first time."The biggest risk we have had, and the biggest incidents of cases …READ FULL ARTICLE