Thats the only explanation. I will say this. Yesterday , went to visit friends Both mid seventies live in the country They had their kids and grandkids visit. Stayed for a week Everyone vaccinated. Kids incl. Everyone got covid in the house EXCEPT The oldies. The oldies live a self sufficiency lifestyle. Eat fresh home grown produce every day. Inc killing their own meat . Done it for ever The kids and grandkids eat crap in the city all year. I laughed a bit.
