Should laws compel the carriers of communicable, insurable diseases to wear a mark that identifies them as such?

Pro: Healthy people have a right to protect themselves from infection. Were the carriers of incurable communicable diseases to be marked in an private area of their bodies, those who are considering an intimate physical relationship with the carriers could be fully informed before proceeding. Such information would enable people to avoid the physical contact that may threaten their lives.

Con: The marking of individuals would never extend to all who have an incurable communicable disease. Those who think that an unmarked person is not a carrier of such a disease might be wrong; many people would have a false sense of security when they are physically intimate with those who bear no mark.