Does Covid-19 travel through connecting High Rise Tower / Apartment Exhaust Vents?

One fire?   Exhausts on multiple floors?

Vancouver, British Columbia, Canada:

https://blogborgcollective.blogspot.com/2016/12/vancouver-kitchen-exhaust-vent-test.html

6 Vents - 6 Apartments

If the Exhaust fans are connected, and they are in this apartment, then, is the fresh air supply connected in the same way and from a single source?

And just not in Vancouver.