A virus is an infectious microorganism that consists of a nucleic acid segment (either DNA or RNA) covered by a protein coat and must penetrate a host in order to reproduce.
Bacteria are unicellular creatures that belong to the prokaryotic category and lack a few organelles as well as a genuine nucleus.
Both viruses and bacteria can cause illnesses that can be lethal if not treated properly.
Bacteria and viruses are both known to cause a variety of illnesses.
Comparison between virus and bacteria:
If a comparison is done, viruses are more harmful than bacteria.
The majority of bacteria are not hazardous to humans, while the majority of viruses are.
Bacterial infections are normally innocuous and frequently beneficial to the body, assisting digestion and combating illnesses such as cancer.
They don't require a host to live since they can breed on their own.
To live, viral infections require a host, and they grow by adhering to cells.
Different illnesses are treated differently; antibiotics are used to combat bacterial infections but are ineffective against viral infections.