There are now more than 15 million cases of the novel coronavirus worldwide, including over 8.6 million recoveries, according to Johns Hopkins University, which is tracking figures from the World Health Organization and additional sources.

Since the beginning of the outbreak, more than 623,000 people have died globally from Covid-19 complications.

The United States, Brazil, India and Russia currently have the biggest number of infections, in a global pandemic that first started in the Chinese city of Wuhan. Tens of thousands of cases are recorded worldwide each day, and thousands are dying from the disease.

Johns Hopkins experts in global public health, infectious disease, and emergency preparedness have been at the forefront of the international response to Covid-19.