Difference between vaccine and antibody

Antibiotics and vaccines are both used to fight germs but they work in different ways. While vaccines are used to prevent disease, antibiotics are used to treat diseases that have already occurred. In addition, antibiotics do not work on viruses or viral illnesses such as common cold or flu.

Comparison chart

Antibiotics are small molecules or compounds that are effective in treating infections caused by organisms such as bacteria, fungi and protozoa.	Vaccines are dead or inactivated organisms or compounds that are used to provide immunity to a particular infection or disease.
Antibiotics are classified according to their structure and mechanism of action into 3 classes: cyclic lipopeptides, oxazolidinones & glycylcyclines. The first 2 are targeted at Gram positive infections and the last one is a broad spectrum antibiotic	Vaccines are of different types-live and attenuated (vaccines against chicken pox), inactivated (BCG vaccine), subunit (Hepatitis C), toxoid, conjugate, DNA , recombinant vector vaccines and other experimental vaccines.
Some antibiotics may have side effects like diarrhea, nausea and allergic reactions.	Some vaccines may cause allergic reactions.
Antibiotics can be derived from natural, semi-synthetic and synthetic sources.	Sources of vaccines include live or inactivated microbes, toxins, antigens, etc.

An antigen specifically induces the production ofantibodies which can bind to it and neutralise it. While most vaccines work by inducing B lymphocytes to produceantibodies, activation of T-cells — another type of immune system cell that helps protect against disease — is also important for some vaccines.