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itriagehealth.com
„Symptoms of Plague”. iTriage. Healthagen, LLC. Arhivirano iz originala na datum 4. 2. 2016. Pristupljeno 26. 11. 2014.
„Plague as a biological weapon: medical and public health management. Working Group on Civilian Biodefense”. JAMA283 (17): 2281–90. maj 2000. DOI:10.1001/jama.283.17.2281. PMID10807389.
web.archive.org
Organization, World Health (novembar 2014). „Plague Fact sheet N°267”. Arhivirano iz originala na datum 24. 4. 2015. Pristupljeno 10. 5. 2015.
„Plague Symptoms”. 13. Jun 2012. Arhivirano iz originala na datum 19. 8. 2015. Pristupljeno 21. 8. 2015.