VAP (Ventilator associated pneumonia) Protocol questions

We are trying to implement VAP (Ventilator associated pneumonia) protocols in our NICU including elevating head of bed.

Questions:

Do you apply your VAP protocol to only intubated babies, all babies on oxygen, or babies on any heated oxygen source?

Also, what do you use for oral care?

If you have evidence to support your practice, I would greatly appreciate it.

Thanks,

Elizabeth Curry