Immunization is the process of administering a vaccine to a person, which helps to protect them from infectious diseases. Vaccines contain antigens, which are the weakened or killed forms of the disease-causing microorganisms, such as viruses or bacteria. Vaccines stimulate the body’s own immune system to recognize, respond to, and fight the disease-causing microorganism, should it enter the body.
In English, immunization is simply referred to as "getting a vaccine". The term is often used to describe the act of protecting a person from a disease by introducing a vaccine into the body. The vaccine stimulates the body's own natural immune system to fight the disease-causing organism, should it enter the body.
Immunization is an important public health intervention that has helped to reduce the incidence of many serious and potentially life-threatening diseases, such as measles, mumps, rubella, polio, and diphtheria. Vaccines are available for many different types of infectious diseases, and it is important for individuals to understand the importance of receiving regular vaccinations to help protect themselves and others from these diseases.