Prediction: A simple over the counter salt water nasal spray will be found to be sufficient preventative for all common respiratory infections.
Why do I think this?
Firstly, because of personal experience with very frequent flu-like illnesses, trying many treatment approaches, and having an immediate revelatory experience as soon as a saline nasal spray was employed.
Secondly, the following applies for bacteria and viruses including covid:
“The virus travels to the back of your nasal passages and mucous membrane in the back of your throat. It attaches to cells there, begins to multiply and moves into lung tissue.”
Details: Coronavirus, COVID-19
Thirdly, scientists are aware of this and are already planning to study saline nasal sprays for this purpose:
“Studies have shown that the use of…nasal saline irrigations can decrease viral shedding…including the common coronavirus…”
Credit: Feature Image