Health personnel carry out a house-to-house search for positive cases of Covid-19 in  Buenos Aires, Argentina, on Monday. 22,794 people have been infected by Covid-19 in Argentina and 670 have died. Photograph: Juan Ignacio Roncoroni/EPA

Coronavirus has infected more than 7.1 million people across the world and killed more than 406,500, according to a tally kept by Johns Hopkins Univer(...)

Demonstrators against the impeachment of Brazil’s president Dilma Rousseff shout slogans during clashes with the police in Brasilia, Brazil, May 11th, 2016.  Photograph: Paulo Whitaker/Reuters

Brazil’s senate voted on Thursday to put leftist president Dilma Rousseff on trial in a historic decision brought on by a deep recession and a corrup(...)