Maybe once? I went on a trip two years ago courtesy of my dad since he was attending a concert and I decided to tag along last minute. Walked around busy Las Vegas and came into contact with lots of people. On the final day and I was about to return, I was sick and sent my dad (right before my train started to board) to pick me up some mints to suck on. I was upset that I couldn’t really enjoy my Amtrak train trip back due to being sick. Our train at the time also had an ice shortage, so they were limiting the amount given to customers. I remember buying a few things I didn’t necessarily need so the attendant would give me ice for my drinks. They’re more likely to give to people buying things, even if the ice is free.
My throat was very dry. I thought I was just sick until the day I returned and one of my friends that was also on vacation — not with me, but somewhere else — was also sick. We had the same exact symptoms and were both sick for about five days. I assumed it was COVID considering the circumstances and soon it made sense, although I don’t know for sure. It was over two years ago so I don’t recall how I felt aside from being disappointed I couldn’t fully enjoy my train journey. I normally try to avoid posting on threads like this but I’m just sharing my experience in which I may have had it.