Kwäday Dän Ts'ìnchi Kwäday Dän Ts'ìnchi Kwäday Dän Ts'ìnchi () (meaning "Long Ago Person Found" in Southern Tutchone), or Canadian Ice Man, is a naturally mummified body found in Tatshenshini-Alsek Park in British Columbia, Canada, by a group of hunters in 1999. Radiocarbon dating of artifacts found with the body placed the age of the body at between 300 and 550 years. The find was comparable in condition and scientific value to Ötzi the Iceman, remains dating to 3300 BC that were found in the Ötztal Alps in 1991. DNA testing of more than 240 volunteers from the local Champagne and Aishihik First
Ancient DNA 2001, Gilbert "et al." 2004). Contamination remains a major problem when working on ancient human material. Ancient pathogen DNA has been successfully retrieved from samples dating to more than 5,000 years old in humans and as long as 17,000 years ago in other species. In addition to the usual sources of mummified tissue, bones and teeth, such studies have also examined a range of other tissue samples, including calcified pleura (Donoghue "et al." 1998), tissue embedded in paraffin, and formalin-fixed tissue. Efficient computational tools have been developed for pathogen and microorganism aDNA analyses in a small (QIIME) and large scale