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  1. Scanning electron micrograph of Staphylococcus and a dead human neutrophil
  2. Bacterial Growth On Culture Media
  3. Stamp out Syphilis and Gonorrhea - WPA Poster
  4. Shame may be Fatal - WPA Poster
  5. Avian flu virus, TEM
  6. E. coli bacteria, SEM
  7. HIV virus particles, artwork
  8. Pseudomonas aeruginosa bacteria, SEM
  9. Anaerobiospirillum thomasii flagella, TEM
  10. Microscopic view of human antibodies with red blood cells
  11. Enterococcus faecalis bacteria, SEM
  12. Escherichia coli bacteria, SEM
  13. Conceptual image of influenza causing flu
  14. Petri dish bacterial cultures, picking a colony
  15. Hepatitis C virus, molecular model
  16. Syphilis bacterium (Treponema pallidum)
  17. Stack of petri dishes with bacterial cultures
  18. Microscopic view of cell and virus
  19. Microscopic view of ebola virus
  20. Microscopic view of herpes virus
  21. Gut bacterium, TEM
  22. Microscopic view of virus
  23. Anthrax bacteria
  24. Group of Escherichia coli bacteria cells, known as E. Coli
  25. Sleeping sickness parasite
  26. Salmonella, TEM
  27. CD4 protein fragment, molecular model
  28. Ebola viruses, artwork