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  1. Scanning electron micrograph of a human neutrophil ingesting MRSA
  2. Scanning electron micrograph of Staphylococcus and a dead human neutrophil
  3. E. coli bacteria, SEM
  4. Virus particles entering cells, artwork
  5. Microscopic view of coronavirus
  6. Scanning electron micrograph of HIV particles infecting a human H9 T cell
  7. Bacterial Growth On Culture Media
  8. Cells from a urine infection, SEM
  9. Tuberculosis bacteria, artwork
  10. Colorized image of HIV-infected H9 T-cell
  11. Microscopic view of the common cold virus
  12. Microscopic view of bacteria
  13. Virus particles, conceptual artwork
  14. Microscopic view of rotavirus
  15. Scanning electron micrograph of HIV particles infecting a human T cell
  16. Bacteria infecting a macrophage, SEM
  17. H1N1 flu virus particle, artwork
  18. E. coli bacteria, SEM
  19. Avian flu virus, TEM
  20. Virus particles, artwork
  21. Bacteria infecting a macrophage, SEM
  22. Microscopic view of diplococcus bacterium
  23. HIV virus particles, artwork
  24. Colorized scanning electron micrograph of filamentous Ebola virus particles
  25. Microscopic view of Penicillium expansum
  26. Oral Streptococcus Bacteria, SEM
  27. Pseudomonas aeruginosa bacteria, SEM
  28. Anaerobiospirillum thomasii flagella, TEM
  29. Microscopic view of human antibodies with red blood cells
  30. Microscopic view of Giardiasis
  31. Conceptual image of salmonella
  32. Enterococcus faecalis bacteria, SEM
  33. Virus, artwork
  34. Escherichia coli bacteria, SEM
  35. Bacteria infecting a macrophage, SEM
  36. Conceptual image of influenza causing flu
  37. HIV particles, TEM
  38. Bacteria infecting macrophage cells, SEM
  39. Conceptual image of plasmodium causing malaria
  40. Hepatitis C virus, molecular model
  41. Microscopic view of poliovirus
  42. Syphilis bacterium (Treponema pallidum)
  43. Conceptual image of flagellate bacterium
  44. Microscopic view of cell and virus
  45. Antibiotic cell membrane effect, artwork
  46. Microscopic view of ebola virus
  47. Porphyromonas oral bacteria, TEM
  48. Microscopic view of herpes virus