Vaccine is a medical preparation intended to create immunity to infectious diseases. Vaccine is made from weakened or killed microorganisms, products of their vital activity, or from their antigens obtained by genetic engineering or chemical means.

Principles of vaccination:

  • Vaccination stimulates the adaptive immune response, forming specific memory cells in the body. The subsequent infection by the same agent causes a persistent, faster immune response;
  • Vaccines should be safe and affordable.


Live vaccines

Live vaccines are made on the basis of weakened strains of a microorganism with persistently fixed avirulence (harmlessness). The vaccine strain, after administration, multiplies in the body of the vaccinated and causes a vaccinal infectious process. In most vaccinated patients, the vaccine infection occurs without significant clinical symptoms and leads to the formation, as a rule, of persistent immunity. Vaccines for the prevention of rubella, measles, poliomyelitis, tuberculosis, mumps can serve as an example of live vaccines.

Corpuscular vaccines

Corpuscular vaccines contain weakened or killed microbes (virions).

Chemical vaccines

They are created from antigenic components extracted from a microbial cell. They isolate those antigens that determine the immunogenic characteristics of the microorganism.

Recombinant vaccines

These vaccines are produced by using genetic engineering methods, integrating the genetic material of the microorganism into yeast cells that produce antigen. After cultivation of yeast, the necessary antigen is isolated, purified and the vaccine is prepared. An example of such vaccines is a vaccine against hepatitis B or a vaccine against human papillomavirus (HPV).

Posted by

Connected Medications :

Pnu-Imune 23 (Pneumococcal Vaccine)

PNU-IMUNE® 23 Wyeth-Ayerst Pneumococcal Vaccine Polyvalent Active Immunizing Agent Action And Clinical Pharmacology: Disease caused by S. pneumonia remains an important cause of morbidity and…

Acel (Vaccination)

ACEL-P™ Wyeth-Ayerst Acellular Pertussis Vaccine Adsorbed Active Immunizing Agent Action And Clinical Pharmacology: Pertussis disease (whooping cough) is caused by a gram-negative coccobacillus, B. pertussis….

Fluviral S/F

FLUVIRAL S/F® BioChem Vaccines Whole-Virion and Split-Virion Influenza Virus Vaccine, Inactivated Active Immunizing Agent Action And Clinical Pharmacology: Fluviral S/F, split-virion influenza vaccine, promotes an…

Typhim Vi

TYPHIM Vi™ Connaught Salmonella Typhi Vi Capsular Polysaccharide Vaccine Active Immunizing Agent Action and Clinical Pharmacology: PharmacologyS. typhi is the etiological agent of typhoid fever,…

Diphtheria Toxoid ()

DIPHTHERIA TOXOID Connaught Diphtheria Prophylaxis Indications And Clinical Uses: For active immunization against diphtheria. Dosage And Administration: For Infants, Pre-School and School Children: For infants…