When will we know the Covid-19 pandemic is over?

The effects of the Covid-19 pandemic will likely end at different times for different places .— starline/Freepik

Throughout each day, Dr Cheryl Bettigole receives granular, neighbourhood-level updates on the numbers we’ve all been hearing for months – the percentage of people testing positive for Covid-19; transmission rates; hospitalisations; deaths; and progress with vaccines, all in Philadelphia and beyond in the United States.

The lines on the graphs often bounce around like the stock market.