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  1. H1N1 flu virus particle, artwork
  2. Helicobacter pylori bacteria
  3. Bacteria infecting a macrophage, SEM
  4. Virus particles, artwork
  5. Microscopic view of diplococcus bacterium
  6. TEM of Proteus mirabilis bacterium
  7. Used interdental brush, SEM
  8. Petri dish bacterial cultures, picking a colony
  9. Antibiotic destroying a bacterium
  10. Conceptual image of influenza causing flu
  11. Clostridium difficile bacteria, TEM
  12. Tongue bacteria, SEM
  13. Staphylococcus epidermidis bacteria
  14. Cryptosporidiosis, TEM
  15. TEM of Bordetella pertussis bacteria
  16. Bacterial Growth On Culture Media
  17. Bacterial lung infection
  18. E. coli bacteria, SEM
  19. Conceptual image of flagellate bacterium
  20. Tuberculosis bacteria
  21. HaCaT culture cells, light micrograph
  22. Enterococcus faecalis bacteria, SEM
  23. Conceptual image of plasmodium causing malaria
  24. Bilharzia infection, ureter tissue
  25. Stack of petri dishes with bacterial cultures
  26. Helicobacter pylori bacterium, TEM
  27. CD4 protein fragment, molecular model
  28. Tongue bacteria, TEM
  29. Pseudomonas aeruginosa bacteria, SEM
  30. Conceptual image of the coronavirus
  31. Clostridium botulinum bacteria with spores
  32. Legionella bacteria
  33. Artistic representation of the immune system's reaction to bacteria invading the tissues
  34. Salmonella bacteria, SEM
  35. Vibrio cholerae bacterium, TEM
  36. Hepatitis C virus, molecular model
  37. Oral Streptococcus Bacteria, SEM
  38. E. coli bacteria, SEM
  39. AIDS pneumonia infection, TEM
  40. Microscopic view of ebola virus
  41. Anthrax bacteria
  42. Rod-shaped bacteria, artwork
  43. Cell division in Salmonella bacterium
  44. Bacteriophage virus, artwork
  45. Gonorrhoea bacteria, TEM
  46. Ebola viruses, artwork
  47. E. coli 0157:H7 bacteria
  48. Bacteria infecting a macrophage, SEM