Iodine to lessen chances of spreading/contracting COVID-19

'The Use of Povidone Iodine Nasal Spray and Mouthwash During the Current COVID-19 Pandemic May Reduce Cross Infection and Protect Healthcare Workers': https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3563092 Note that solutions of the kind of iodine mentioned in the article maybcontain harmful substances (when injested) in the USA. iodine_

Milk/whey, iodine soap spray

..., there are still reasons a person might want to do it. 1. Increased iodine content in your food (not everyone wants to use iodized salt for their only source of iodine). 2. Increased fungus-reistance. 3. Increased shelf-life. 4. The pre-transplant boost it talks about in the article. That is, assuming all those things are true. iodine_ milk_ whey_ foliar_spray