The infected person recently returned to Ukraine from the United Arab Emirates

Moscow for the first time laid out in detail demands that it says are essential for defusing the crisis

The development comes just days after a partial lockdown was extended in the country

Emergency use listing of Covovax boost for lower-income countries, says WHO

Australia was not in the same situation as the United Kingdom, Europe or North America, where cases are soaring

Courts have blocked Biden's vaccine requirement for healthcare workers in half the states

Alibaba aims to focus on its e-commerce abroad instead of at home, as its sales drop in China.

Tesla facing a lawsuit against Elon Musk tweets and his public polls on stock sales that pulled down stock prices.

Variant associated with a 5.4-fold higher risk of reinfection compared with Delta, says Imperial College London study

‘Moderna, AstraZeneca, Pfizer retained activity against new variant but antibody response greatly reduced’