Research into the common rat has revealed how people and certain diseases migrated around the ancient world, Australian scientists said on Friday.
A study of DNA from 165 black rat specimens from 32 countries has found six distinct family groups, with each group coming from a different part of Asia.
"It has been unclear why certain rodent-borne diseases are more common in some places than others," said head researcher Ken Alpin, from Australia's top science research body, the CSIRO.
"But our work raises the possibility that the different lineages of black rats each carry a different set of diseases."
http://timesofindia.indiatimes.com/HealthSci/Rats_hold_clues_to_ancient_migration/articleshow/2749703.cms
Saturday, February 2, 2008
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