This latest wave in Iowa seems to have come north from Arkansas, Missouri, now Iowa, (especially rampant the past 2-weeks here in NE Iowa and SW Wisconsin), and I have read it is accelerating into Minnesota, now.
Our MRNA vaccines are particularly efficacious and safe. I believe J & J is too, but probably could be combined with a different second shot. I am 5-months from being eligible for a booster. No worries, I had COVID-19 and was asymptomatic, but I worry about my wife and daughter, who are vaccinated, but have not had COVID. My daughter is a healthcare worker.
I have wondered if a booster J & J would be effective with an MRNA vaccine but have not seen anything on this topic. If you have, please provide a citation.
COVID-19 hits too close to home for me. I have personally known 8 people who died from COVID-19, one of whom was a relative.