I am a huge fan of iodine, it’s my new best friend! I never knew how lacking we are in potassium iodine until recently. I grew up on well water and did not develop abnormal conditions until I was living in areas that had only “tap”.
Flourine, bromine, chlorine did G*d intend that to be in your body?
Iodides will kill the microbes..end of story.
The hidden variables are that when you moved from the country to the city (or suburb) you also took in more pollution from other sources, stress, etc.
You need to supplement with selenium as well. Brownstein's book explains why.