Covid is very high in Iowa right now:
1 in 27 people in Iowa is infectious right now:
You can monitor the wastewater levels for each state and nationally at the website these images are from:
Covid-19 data
Each Covid infection damages your immune system and makes it more likely you'll keep getting sick, over and over again. This is true whether or not someone's vaccinated:
If you wear an N95 or higher number (N99, etc.) mask in public and you don't take it off/pull it down to talk to people or fiddle with it, you will be much less likely to get sick from someone else who isn't wearing a mask. It's like a condom - it doesn't work well/protect you if you don't wear it or keep taking it on and off.
You can get N95s from Amazon (3M is a good company to look for) for about $18 a box (less than $1/mask) and you can use them over and over until the elastic wears out. I've worn one every day for the last year due to medical problems and I haven't gotten sick with anything, not even a cold. I have been around people who have had Covid without showing symptoms, and I wore a 3M N95 mask and didn't get Covid. Masks work if you use them.