Covid is still causing havoc around the world

(CNN)The number of new Covid-19 cases is rising once again and while the virus isn't killing nearly as many people as it used to -- thanks to vaccinations -- it is still causing havoc around the world. 

With labor shortages already paralyzing airports and wrecking the hospitality sector, a wave of worker absences due to sickness is the last thing the economy needs. 

The latest wave of infections is driven by the most infectious and transmissible variant identified so far --  BA.5.

Based on the sequencing data reported to the World Health Organization...