AstraZeneca Plc and Oxford pause major vaccine trial for second time.
Argentina and Chile both said they had confirmed their first case of the novel coronavirus in patients who recently returned from travels.
Argentina's President Alberto Fernández has said he will send a bill to legalise abortion to Congress within the next 10 days.
A British man has been killed and his son wounded after being shot during a suspected robbery outside a five-star hotel in Buenos Aires, officials say.
About 34 million Argentines will head to the polls on Sunday in an election widely expected to cement the end of President Mauricio Macri's term.
Argentina has imposed currency controls in an attempt to stabilise markets as the country faces a deepening financial crisis.
"Argentina is a small economy. However, the last thing global markets want to see is another market-friendly government fall to populism and/or geopolitics,” said Rabobank strategist Michael Every.
Argentina’s international bonds tumbled in London trading after a populist opposition candidate routed President Mauricio Macri in a shock primary election result.