[Al Jazeera]
By 
Mohammed Haddad
17 Nov 2020
 
It has been nearly a year since the first coronavirus case was reported in the Chinese city of Wuhan last December.

In recent weeks, there has been a lot of mention of countries entering a second or third wave. While there is no strict scientific definition to characterise a disease’s wave, plotting current outbreaks on a line chart can help us see whether or not a country has entered a new phase of infections or if it is still in part one of a continuous wave.