The death toll from Covid-19 has surpassed half a million people, according to a Reuters tally, a grim milestone for the global pandemic that seems to be resurgent in some countries even as other regions are still grappling with the first wave.

While the overall rate of death has flattened in recent weeks, health experts have expressed concerns about record numbers of new cases in countries like the United States, India and Brazil, as well as new outbreaks in parts of Asia.

More than 4,700 people are dying every 24 hours from Covid-19-linked illness, according to Reuters calculations based on an average from June 1 to 27.