Question

Give two examples of vaccines.

Answer 1

1. A vaccine is defined as any substance which is used to stimulate the production of antibodies, in turn providing immunity against one or a few diseases.
2. A vaccine is defined as a biological preparation formulated to provide acquired immunity for a particular disease.
3. Usually, vaccines contain a weakened or killed form of the disease-causing agent, its surface proteins, or its toxins.
4. When this preparation is introduced into the human body, the immune system is able to recognize the threat and destroy it.
5. Moreover, the body will “remember” the threat and can initiate an appropriate response if encountered in the future.
6. The process of administering the vaccine is called vaccination or immunization.
7. The DPT vaccine or DTP vaccine is a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough), and tetanus.
8. BCG, or Bacille Calmette-Guerin, is a vaccine for tuberculosis (TB) disease.