The process of production and development of vaccines which consist of biological agents which are similar to disease-causing microorganisms in weakened forms it means that the pathogenicity is disintegrated from the microorganism vaccine

 is a biological preparation that provides active acquired immunity to a particular disease. A vaccine characteristically 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. The agent stimulates the body's immune system to recognize the agent as a threat, conclusion it, and to further recognize and destroy any of the microorganisms associated with that agent that it may encounter in the forthcoming. Vaccines can be prophylactic (example: to prevent or ameliorate the effects of a future infection by a natural or "wild" pathogen), or relaxing (e.g., vaccines against cancer are being investigated).

The management of vaccines is called vaccination. Vaccination is the most effective technique of preventing infectious diseases widespread immunity due to vaccination is largely accountable for the worldwide eradication of smallpox and the restriction of diseases such as poliomeasles, and tetanus from much of the world. The efficiency of vaccination has been extensively studied and verified; for example, the influenza vaccine, the HPV vaccine, and the chicken pox vaccine. The World Health Organization (WHO) reports that licensed vaccines are currently existing for twenty-five different preventable infections. 

  • Track 1-1 reverse vaccinology
  • Track 2-2 Inactivated vaccines
  • Track 3-3 Subunit vaccines
  • Track 4-4 Toxoid vaccines
  • Track 5-5 Conjugate vaccines
  • Track 6-6 DNA vaccines
  • Track 7-7 Recombinant vector vaccines

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