I don't need a person with a doctorate degree to treat me. I just need a person who has a reasonable understanding of how does a human body work and a reasonable skill of doing particular medical procedures.

Doctors generally don't have doctorate degrees. That's a Ph.D which is a doctor of philosophy degree. A physician becomes a doctor by earning degrees as an M.D., doctor of medicine, or D.O., doctor of osteopathic medicine.

What you're describing is either an MD, a NP, or a traditional nurse/specialist.

Intubation procedures are often performed by respiratory therapists.

You go first! We'll give you 6 weeks training, and then you can go work in intensive care around infectious patients.

You seem to be ignorant about health care. Respiratory therapists have at least 2 years of training.

There's never been a better reason to start building capacity.