Key developments in the global coronavirus outbreak today include:

US passes China as nation with most infections

The US has surpassed China as the country with most reported Covid-19 infections, with more than 82,000 cases. Trump marked the moment by saying it was a “tribute to the amount of testing that we’re doing”, while also taking a swipe at China; “I’m sure you’re not able to tell what China is testing or not testing. I think that’s a little hard.” On a grim day, the death toll in America passed 1,000 and it was revealed that last week 3.3 million people filed for unemployment – the biggest single-week jump in history. On Thursday night US time, Trump spoke with the Chinese president Xi Jinping, descrbing it as a “very good conversation”. Chinese media said Xi warned Trump that the US needed to take “substantive” action to improve relations between the two countries. Read more at our live blog.

Locally transmitted case emerges in China

Mainland China reported its first locally transmitted coronavirus infection in three days, although cases involving travellers from overseas continued to dominate the total number of new cases. China’s National Health Commission said on Friday that 55 new coronavirus cases were reported the previous day, with all but one being imported. There were 67 new cases a day earlier.

Brazilians impervious to virus, says Bolsonaro

Brazil’s president Jair Bolsonaro has claimed Brazilians “never catch anything” as Covid-19 cases rise in the country. He scotched the idea that Latin America’s biggest economy could soon face a situation as severe as the United States. Without offering any scientific evidence, Bolsonaro said: “I think it’s even possible lots of people have already been infected in Brazil, a few weeks or months ago, and have already got the antibodies that help it not to proliferate”. Brazil has reported 3,000 cases and 77 deaths.

Health worker deaths mount in Italy

Forty-one health workers in Italy have died from coronavirus, with more than 5,000 doctors, nurses, technicians, ambulance staff and other health employees infected. “It’s as if a storm hit us,” said Roberto Stellini, a doctor of infectious diseases at Poliambulanza hospital in Brescia.

Australia places all returning travellers in hotel quarantine

All passengers returning to Australia will spend 14 days in a hotel in the city of their arrival, in new measures announced to tackle the spread of coronavirus. The PM, Scott Morrison, said more than 7,000 people arrived at airports on Thursday, compared with 48,000 on the same day last year. The state government of the state passengers arrive in will organise the accomodation.

New Zealand confirms record number of new cases

New Zealand has confirmed 85 new Covid-19 cases in the country. On Thursday, prime minister Jacinda Ardern warned that infections were likely to get worse before they got better, despite the entire country being put under lockdown for four weeks. However, modelling suggests that the tough isolation measures could limit deaths during the lockdown to just 20.