Of or relating to antibiotics.
Any substance that can destroy or inhibit the growth of bacteria and similar microorganisms, generally transported by the lymphatic system.
Of, pertaining to, caused by, or characteristic of cowpox.
Of or pertaining to cowpox as a source of material for vaccination against smallpox; also, of or pertaining to such material used for vaccination.
Something defensive or protective in nature, like a vaccine (sense 1.1).
A substance given to stimulate a body's production of antibodies and provide immunity against a disease without causing the disease itself in the treatment, prepared from the agent that causes the disease (or a derivative of it; or a related, also effective, but safer disease), or a synthetic substitute; also, a dose of such a substance.
Material taken from cowpox pustules used for vaccination against smallpox.
A software program which protects computers against, or detects and neutralizes, computer viruses and other types of malware; an antivirus.
The process of vaccination; immunization, inoculation.