a survey of rodent-borne pathogens carried by wild-caught norway rats: a potential threat to laboratory rodent colonies.unintentional infection of laboratory rodents can compromise scientific research as well as the health of the animals and animal handlers. the source of contamination often is unknown, but may be introduced by wild rats from surrounding environments. to determine whether rats in baltimore, maryland, usa carry infectious agents commonly found in laboratory rodent colonies, we live-trapped 162 rats during 2005 to 2006 and screened them for a panel of viruses, bacteria and parasites. antibodies aga ...200818348770
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