What is a ventilator and who gets one if COVID-19 turns catastrophic in Canada?

In critical cases, COVID-19 attacks the lungs and restricts breathing to the point where a patient needs a ventilator to stay alive. However, in Canada, as in most other countries, there is a limited supply of these potentially life-saving machines. Here are answers to some key questions about them.

from CBC | Health News https://ift.tt/39wxKgm