Susan, you would do well to research the use of the Chalice at the Lord's Supper more carefully. While people might feel like it is a danger for virus transmission, the Church's historic mode of receiving the Lord's Blood is at least as sanitary, if not more so, when examined scientifically. See the following for research related to this:

1) CDC: Recommendations for preventing transmission of infection with human T-lymphotropic virus type III/lymphadenopathy-associated virus in the workplace, NWMR 1985;34 (Nov 13): 681-695.
2) B.C. Hobbs, J.A. Knowldon & A. White. “Experiments on the Communion Cup.” Journal of Hygiene, Vol. 65 (1967): 37-48.
3) Glaser & Nadler, Archives of Internal Medicine, Vol. 145:1653, 1985.
4) O. Noel Gill. “The Hazard of Infection from the Shared Communion Cup [Review].” Journal of Infection, Vol. 16, No 1 (January 1988): 3-23.
5) Anne LaGrange Loving. “Holy Communion and Health-is there a Risk?” Journal of Environmental Health, July-August 1997.