Alastrim also known as variola minor, is slow smallpox; in the eyes it causes blur vision,
Alastrim (slow smallpox) 80 350 5500 (sq 3517 6250 9350 2250 4960-1 6824-5 7530-7) Hz
Bubonic plague can appear as a persistent ulcer on the skin,
Yersenia Pestis 5120 5000 1600 512 496 333 216 160 Hz
Yersenia Pestis is the bacterium that cause the plague.
