Bacteria is unicellular living organism whereas Virus do not have cells and are considered as both living and non living.
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Difference Table For Virus and Bacteria
| Characteristics | Virus | Bacteria |
| Benefits | Harmful | 90% are harmless and beneficial |
| Size | Smaller | Bigger |
| Ribosomes | Absent | Present |
| Genetic Material | Single or Double Stranded DNA or RNA | Double Stranded DNA |
| Reproduction | Need Host | By Binary Fission |
| Parasite | All | Some |
| Infection Area | Spread all over the body | Localized within organ |
| Cure | Cannot be treated with antibiotics. Possible to Prevent using Vaccines | Treated with Antibiotics |
| Examples | HIV, Rhinovirus | Escherichia coli, Vibrio cholerae |
| Diseases | AIDS, Common Cold, Chickenpox, Ebola | Ulcer, Food Poisoning, Pneumonia, Tuberclosis |
Common Properties of Bacteria and Virus
- Both are infectious agents.
- Common Symptoms of infection are fever, fatigue.
- Not visible to our eyes
- They both do not have nucleus