Transmission of Spironucleus and Giardia spp. and some nonpathogenic intestinal protozoa from infested hamsters to mice.

Intestinal protoza belonging to the genera Spironucleus (Hexamita), Giardia, Trichomonas and Entamoeba, carried by conventional hamsters, were successfully transmitted to and established in protozoa-free sucking or newly-weaned specified-pathogen-free inbred mice by exposure of the mice to hamster intestinal contents.