I can think of two methods off the top of my head to be able to provide communion wafers that would be safer. Given some thought smart people will be able to ID other alternatives.

#1 It is blessed, placed on a small napkin, the napkin is placed on a 6 foot pole with a flat surface (think of a shovel shape) but lighter, it wouldn’t have to be heavy duty as there isn’t much weight involved. the member of the congregation then takes the communion wafer.

#2 The Priest blesses the wafers that have been set out on a cart - again in individual napkins. In turn each parishioner comes forward and takes their communion wafer.

I grew up in the Catholic Church and don’t remember any requirement that the Priest handle it with his bare hands and place it on your tongue.
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.WW, PHS