contamination of eggs with listeria monocytogenes bacteria, medical concept for transmission of listeriosis

bacillus bacteria bacterial bacterium biology causes causing cell chicken closeup concept conceptual contamination disease egg epidemic flagella food germs grampositive health hen human illness illustration infection listeria listeriosis magnified medicine meningitis microbes microbiology microscope microscopic monocytogenes organism pathogen peritrichous poisoning rodshaped science scientific shell sick transmission yoghurt yogurt