Coronavirus live news: record global case rise; Washington health officials ask Rose Garden guests to get tested

Washington health department releases open letter asking White House staff and guests at super-spreader event to take Covid tests; WHO reports nearly 340,000 new cases. Follow the latest updates

11.52pm BST

In an extraordinary step, the Washington, DC, Department of Health has released an open letter appealing to all White House staff and anyone who attended a September 26 event in the Rose Garden and inside the building to mark the nomination of Amy Coney Barrett to the supreme court to seek medical advice and take a Covid-19 test.

The letter indicates a lack of confidence in the White House medical team’s own contact tracing efforts regarding an ongoing virus outbreak that has infected Donald Trump, multiple senior staff members and two US senators, among others, The Associated Press writes.

11.38pm BST

Hello and welcome to today’s live coverage of the coronavirus pandemic.

My name is Helen Sullivan and I’ll be bringing you global developments as well as key news in the White House’s Covid outbreak.

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