Domain and Kingdom
- They are just viruses
- Non cellular or Acellular
- Only living inside other cells
- Have RNA(e.g. picornaviruses Figure 1) or DNA (e.g. smallpox Figure 2)
- Smallest of all microbes
Field of Study
- Microbiology
- Virology
- classification
- Immunology
- vaccines
Affects on Us
- Positive
- recombnant DNA
- Negative
- viral diseases (e.g. chickenpox Figure 3)