id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-1397 Smallpox - Wikipedia .html text/html 16390 2120 69 According to a theory put forward in Journal of Australian Studies (JAS) by independent researcher Christopher Warren, British marines used smallpox in 1789 against indigenous tribes in New South Wales.[141] This theory was also considered earlier in Bulletin of the History of Medicine[142] and by David Day.[143] However it is disputed by some medical academics, including Professor Jack Carmody, who in 2010 claimed that the rapid spread of the outbreak in question was more likely indicative of chickenpox—a more infectious disease which, at the time, was often confused, even by surgeons, with smallpox, and was in fact comparably deadly to Aborigines and other peoples without natural immunity to it.[144] Carmody noted that in the 8-month voyage of the First Fleet and the following 14 months there were no reports of smallpox amongst the colonists and that, since smallpox has an incubation period of 10–12 days, it is unlikely it was present in the First Fleet; however, Warren argued in the JAS article that the likely source was bottles of smallpox virus possessed by First Fleet surgeons. ./cache/en-wikipedia-org-1397.html ./txt/en-wikipedia-org-1397.txt