Generally, a person may be punished for sedition only when he or she makes statements that create a Clear and Present Danger to rights that the government may lawfully protect (schenck v. united states, 249 U.S. 47, 39 S. Ct. 247, 63 L. Ed. 470 [1919]).
The epidemic reached its zenith in the years 1348 to 1350, though the disease never vanished entirely. It is widely believed that the cause of the Black Death was bubonic plague, an infectious and fatal illness spread by rodents and the fleas infesting them.
The Black Death: Bubonic Plague. In the early 1330s an outbreak of deadly bubonic plague occurred in China. The bubonic plague mainly affects rodents, but fleas can transmit the disease to people. Once people are infected, they infect others very rapidly. Plague causes fever and a painful swelling of the lymph glands called buboes, which is how it gets its name. The disease also causes spots on the skin that are red at first and then turn black.