How can there be a one time application? The coronavirus moves rapidly through the upper respiratory system to the lungs and the blood stream. If you're using UV, how would know where to apply it. It just doesn't make any sense.
Flus migrate from upper to lower respiratory.. So if you have already INTUBATED a patient -- the established infections in the throat are constantly ADDING to the load in the lungs.. (probably, but I dont KNOW -- aggravated by the mechanical friction of the tube and the fact that the sedated intubated patient can't cough stuff up) If you can create a barrier that goes deep into the trachea with UV treatments -- you get what Aytu and Cedars Sinai calls -- prevention of secondary covid infections in the deep portions of the lungs..
It's like cutting off the battlefield.. Body immune system only has to fight 1/2 the battle... That's why I think Aytu has a chance with this product to CHANGE the way critical care ventilators are designed -- maybe eventually.,.,. Useful for probably a LOT of flus...