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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. E. coli bacteria, SEM
  6. Avian flu virus, TEM
  7. Syphilis bacterium (Treponema pallidum)
  8. Microscopic view of human antibodies with red blood cells
  9. HIV virus particles, artwork
  10. Pseudomonas aeruginosa bacteria, SEM
  11. Anaerobiospirillum thomasii flagella, TEM
  12. Enterococcus faecalis bacteria, SEM
  13. Escherichia coli bacteria, SEM
  14. Conceptual image of influenza causing flu
  15. Petri dish bacterial cultures, picking a colony
  16. Hepatitis C virus, molecular model
  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. Anthrax bacteria
  23. Microscopic view of virus
  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