Presumably it would be a serious threat. None of us is resistant to the virus
- immunizations stopped decades ago and even those who were immunizaed have
little circ. antibody left. I suppose aerosolized virus would be the means of
"attack" as spread is largely be inhalation. It wouldn't require that much, as
it would rapidly spread in the succeptible population.
That said, I don't know how it would be a very effective weapon unless all
occupying troops/invading population were immunized and that immunization were