Vaccine Definition Biology, Developing Covid 19 Vaccines At Pandemic Speed Nejm

Dictionary vaccination vaccination definition noun plural.

Inactivated influenza vaccine price abbott. Vaccines are inactivated versions of bacteria or viruses that are injected into a persons bloodstream. A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. Vaccine definition is a preparation of killed microorganisms living attenuated organisms or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular disease.

Vaccines work by stimulating the immune system to attack specific harmful agents. Vaccines a suspension containing live attenuated modified or killed microorganism s or their toxin s or tumor antigen s which when administered into the body stimulates the bodys immune system to produce antigen specific antibodies supplement vaccines containing antigens are administered into the body. Vaccination the administration of vaccine capable of evoking an immune response against a specific antigen thereby making the individual immune to it and protected from contracting the disease supplement edward jenner first used vaccination as a method that prevented smallpox ie.

How to use vaccine in a sentence. Attenuated vaccine a vaccine prepared from live. Vaccine vak sen a suspension of attenuated or killed microorganisms viruses bacteria or rickettsiae administered for prevention amelioration or treatment of infectious diseases.

Vaccine definition noun plural. The widely used vaccine against the tuberculosis bacillus and certain of the newly introduced orally administered typhoid vaccines contain attenuated bacteria. The immune system can detect the foreign substances in the system and it develops.

Vaccine suspension of weakened or killed microorganisms or toxins or of antibodies or lymphocytes that is administered to prevent disease. A vaccine typically contains an agent that resembles a disease causing microorganism and is often made from weakened or killed forms of the microbe its toxins or one of its surface proteins. Examples of attenuated vaccines are the sabin polio vaccine and those used against measles mumps and rubella mmr.