US President-elect Donald Trump has picked a leading Covid lockdown sceptic Jay Bhattacharya to be the next director of a key US public health agency. Trump said he had selected the Stanford University-trained physician and economist to lead the National Institutes of Health (NIH), the world’s biggest government-funded biomedical research entity. Bhattacharya became the face during the pandemic of a fiercely disputed open letter - known as the Great Barrington Declaration - that opposed...