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  1. E. coli bacteria, SEM
  2. Virus particles entering cells, artwork
  3. Scanning electron micrograph of HIV particles infecting a human H9 T cell
  4. Bacterial Growth On Culture Media
  5. Salmonella bacteria, SEM
  6. Cells from a urine infection, SEM
  7. Microscopic view of the common cold virus
  8. Microscopic view of rotavirus
  9. Scanning electron micrograph of HIV particles infecting a human T cell
  10. Bacteria infecting a macrophage, SEM
  11. E. coli bacteria, SEM
  12. Avian flu virus, TEM
  13. Syphilis bacterium (Treponema pallidum)
  14. Virus particles, artwork
  15. Viral throat infection, artwork
  16. Antibiotic destroying a bacterium
  17. Breast cancer cells, SEM
  18. Colorized scanning electron micrograph of filamentous Ebola virus particles
  19. Microscopic view of Penicillium expansum
  20. Cryptosporidiosis, TEM
  21. Microscopic view of Giardiasis
  22. Yeast protein interaction map
  23. Enterococcus faecalis bacteria, SEM
  24. Virus, artwork
  25. Escherichia coli bacteria, SEM
  26. Bacteria infecting a macrophage, SEM
  27. HIV particles, TEM
  28. Used interdental brush, SEM
  29. Petri dish bacterial cultures, picking a colony
  30. Bacterial lung infection
  31. Tongue bacteria, TEM
  32. Hepatitis C virus, molecular model
  33. Microscopic view of poliovirus
  34. Bacteriophage virus, artwork
  35. Rod-shaped bacteria, artwork
  36. Mycobacterium tuberculosis bacteria
  37. Porphyromonas oral bacteria, TEM
  38. E. coli bacteria, SEM
  39. Artistic representation of the immune system's reaction to bacteria invading the tissues
  40. Gut bacterium, TEM
  41. AIDS pneumonia infection, TEM
  42. Antibiotic mechanism of action, artwork
  43. Microscopic view of a leukemia cell
  44. Group of Escherichia coli bacteria cells, known as E. Coli
  45. Group of H5N1 virus with glassy view
  46. E. coli bacteria
  47. Viral transfer of bacterial DNA, artwork
  48. Salmonella, TEM