I think it was here in KY in the same time frame. I had what I thought was the most severe allergy prob, my allergist was perplexed, sent me to a GP, he sent me back to allergist. Ultimately I was told to use a humidifier & 3 days later I was 100% normal. I had a headache/low fever for two weeks, the headache was indescribable, like nothing I’ve ever felt. So, now I wonder. Ironically I was at the casino for several days prior to feeling ill, my friend commented “are we the only non-Asians in here” one day.
The casino was hosting a specific group of tourists during our stay.