Vaccine delivery system. Scientist preparing gelatin beads containing a vaccine to protect newborn chicks from coccidiosis - a disease caused by coccidian protozoa. This new vaccine delivery system uses beads containing oocysts from Eimeria sp. coccidians, one of the primary causes of coccidiosis. Photographed at the Animal Parasitic Diseases Laboratory, Beltsville, Maryland, USA. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Ausmus, Stephen / US Department of Agriculture |
Bildgröße: | 2500 px × 3750 px |
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