Re: Well... Did he have a plague vaccine?

All you have to do is look at the history of some of these vaccines and you'll see they sometimes cause the outbreaks they are ment to prevent. Small pox vaccine is a good example:
1868 “Small-pox was introduced from San Francisco in the year 1868. In that year a general vaccination took place, spring lancets being used, which the President of th eBoard of Health (Mr. David Dayton) informed me were difficult, if not impossible, to disinfect—the operation causing irreparable mischief. The synchronicity of the spread of leprosy with general vaccination is a matter beyond discussion, and this terrible disease soon afterwards obtained such a foothold amongst the Hawaiians that the Government made a first attempt to control it by means of segregation. Another outbreak of smallpox occurred in 1873, and yet another in 1881, both followed by general arm-to-arm vaccination and a rapid and alarming development of leprosy, as may be seen in successive reports of the Board of Health. While the preponderance of medical and scientific opinion is against the theory that leprosy is, in the ordinary sense of the word, a contagious disease, the evidence in favour of its being communicable by inoculation is overwhelming.”

1886-1892 In Australia when a few children died as a result of smallpox vaccinations, the government abolished compulsory vaccination in that country and smallpox suddenly declined to the vanishing point. Australia had only three cases of smallpox in 15 years as compared with Japan’s record of 165,774 cases and 28,979 deaths from this cause in only 7 years under compulsory vaccination and re-vaccination.