Surely the ad orientem position of the priest at the altar as in the EF Mass prevents him from spreading contagion if he coughs or sneezes since he isn't facing the congregation and causing an thick mist of spray to go forth from his mouth covering the congregation.
And Holy Communion (with confession) once a year and during the Easter Season (Easter Duty) sounds sensible to me! That will cut down on germs spread by touching hands or mouth of communicants by the priest who alone distributes Holy Communion, wearing face mask and hand disinfectant after each person is given Holy Communion. Takes longer, but what the heck! There's nothing wrong with erring on the side of abundant caution!