Symptoms are similar to that of the Flu. The incubation period is approximately one to seven days. You can receive a vaccination, which consist of a series of shots and then a booster once a year. The vaccine is said to be expensive and like most vaccinations, are not guaranteed in all inoculated people. Plague , AKA Black Death, is a bacteria usually transmitted by an infected vector.
Vectors are usually fleas, ticks or possibly misquotes.
This agent can also be aerosolized, causing pneumonic plague. The incubation period can be up to three days. The World Health Organization declared smallpox eradicated in 1980. If someone could acquire this virus and aerosolize it, could be highly infectious and contagious. There is an incubation period of approximately twelve days.