Dr. Joan Lunney examining cell cultures with USDA Secretary Tom Vilsack
Cyst of Toxoplasma gondii
Dr. JP Dubey examining microscopic parasite cysts of Toxoplasma gondii
Benjamin Rosenthal and Detiger Dunams-Morel inspect parasites for genetic variation
Dr. Eric Hoberg examining a tapeworm
Drs. Mark Jenkins and Raymond Fetterer examine chicks consuming gel beads containing a vaccine against coccidiosis
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