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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. Syphilis bacterium (Treponema pallidum)
  8. Tongue bacteria, SEM
  9. HIV virus particles, artwork
  10. Pseudomonas aeruginosa bacteria, SEM
  11. Anaerobiospirillum thomasii flagella, TEM
  12. Microscopic view of human antibodies with red blood cells
  13. Enterococcus faecalis bacteria, SEM
  14. Escherichia coli bacteria, SEM
  15. Conceptual image of influenza causing flu
  16. Petri dish bacterial cultures, picking a colony
  17. Clostridium botulinum bacteria with spores
  18. Hepatitis C virus, molecular model
  19. Stack of petri dishes with bacterial cultures
  20. Microscopic view of cell and virus
  21. Microscopic view of ebola virus
  22. Microscopic view of herpes virus
  23. Helicobacter pylori bacterium, TEM
  24. Gut bacterium, TEM
  25. Anthrax bacteria
  26. Microscopic view of virus
  27. Antibiotic acting on bacteria
  28. Group of Escherichia coli bacteria cells, known as E. Coli
  29. Sleeping sickness parasite
  30. Salmonella, TEM
  31. CD4 protein fragment, molecular model
  32. Ebola viruses, artwork