As bad as the COVID-19 pandemic is shaping up, it's not the first time Christians have had to factor "general sickness" into their church lives, including communion.
That typical low Protestant practice of using individual communion glasses comes from a fear of contagion, but also an ethical impulse, combined with a robust bit of Progressivist thinking. Protestants of the late nineteenth century and before used a common cup. But fears of communicable disease (typhoid especially I think) prompted a Lutheran minister to serve the wine in individual glasses, and the practice was born. (And no, I won't call them "shot glasses" or deride the practice as far too many high Protestants do. So don't try it here.) Mind you: this is not my original research or thought, but comes from three decades of education and reading. I am probably getting some of the details wrong, but this is really to set the mood rather than recover a well-established field of study. (Also, I'm tired, like most of you.)
And this isn't the first time churches have been asked to close, or else watch members die. The 1918 "Spanish" flu is out of living memory, but only just and was a terrible plague of the twentieth century. The point of our efforts — including a decision and announcement by the Church of England today, to suspend public worship — is to prevent a repeat. Of course, we have technology that we don't. But he have inherited practices, too, including a curious one adopted (and now lost) by the Unitarians. More about that next time.