Essentials of Disease in Wild Animals. Oxford: Blackwell Publishing. ISBN 978-0-8138-0589-4. ↑ Medline Plus - Plague, NIH, retrieved 2011-03-24 1 2 3 4 Plague in Cats, petMD, retrieved 2013-10-22 ↑ Plague, NYMedicalCenter, retrieved 2013-10-22 ↑ History Learning Site - Black Death of 1348 to 1350, History Learning Site, retrieved 2011-06-06 ↑ "Taylor Gaes dead: Plague kills Colorado high school student".