Do you think that there will be another epidemic of the pneumonic plague?

This is a rather. Low tech fear, the pneumonic version of bubonic plague, the middle age black death, is rat born and bacterial caused, not showing particular resistence. The "Andromeda strains" viral hemmorhagic fevers are much more dramatic, as are the bird flu's like the 1918 von Economo epidemic...We have less effective agents against airborne and blood borne viruses than bacteria.