Thursday, May 14, 2009

Vaccination against Viruses

Vaccination against Viruses

Ideally, antiviral drugs are administered into a persons’ body in the form of vaccine especially during the childhood years. However, some vaccine can administer to adults if it’s needed.

Vaccines are inactivated or dead microorganisms/organisms or purified products derived from them.

There are several types of vaccines for different strategies used to reduce risk of illness and retaining its ability to induce a beneficial response to immune system.

Vaccines may be monovalent or multivalent

Monovalent vaccine - immunization against a single antigen or single microorganism
multivalent vaccine - immunization against two or more microorganisms


Type of Vaccines


Toxoids Vaccines – contains inactivated toxic compounds

Example vaccines are against:

  • Tetanus
  • Diphtheria

Killed Vaccines- contains killed microorganism

Example vaccines are against:

  • Flu
  • Polio
  • Cholera
  • Hepatitis A
  • Bubonic plague


Subunit Vaccines – contains proteins or “whole agent”

Example vaccines are against:

  • Hepatitis B
  • human papillomavirus (HPV)

Conjugate Vaccine- contains polysaccharide

Example vaccines against:

  • Haemophilus influenzae type B

Attenuated Vaccines - contains live attenuated virus microorganisms

Example vaccines are against:

  • Measles
  • Rubella
  • Mumps
  • Yellow fever


Experimental Vaccines – vaccines that are innovative and now in development

Example vaccines are:

  • T-Cell Receptor
  • DNA






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