There are basically three ways...
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There are basically three ways to make a vaccine. One method is to isolate or create an
organism that is unable to cause a full-blown disease but still retains the antigens
responsible for inducing the host's immune response. One way to do this is to kill the
disease-causing organism with formalin. The polio vaccine uses this type of "killed" or
"inactivated" vaccine.
A second way to make a vaccine is to use only the antigenic part of the disease-causing organism, such as the cell wall. These vaccines are known as "acellular" vaccines. Some influenza vaccines are acellular.
Both acellular and inactivated vaccines require a periodic booster shoot to continue a high level of immunity.
A third way of making a vaccine is to weaken or "attenuate" a live microorganism by aging it or altering its growth conditions. This type of vaccine is most effective because the organisms multiply within the body thus causing a greater immune response. Attenuated vaccines are used to vaccinate against measles, rubella, and mumps. Attenuated vaccines require no booster shots.
All three types of vaccines can cause the diseases they are attempting to destroy, so they are not used in any patient who has a compromised immune system.
In some ways, Christ is like the attenuated vaccine. He offered his sacrifice, once for all; no booster shots are required.
A second way to make a vaccine is to use only the antigenic part of the disease-causing organism, such as the cell wall. These vaccines are known as "acellular" vaccines. Some influenza vaccines are acellular.
Both acellular and inactivated vaccines require a periodic booster shoot to continue a high level of immunity.
A third way of making a vaccine is to weaken or "attenuate" a live microorganism by aging it or altering its growth conditions. This type of vaccine is most effective because the organisms multiply within the body thus causing a greater immune response. Attenuated vaccines are used to vaccinate against measles, rubella, and mumps. Attenuated vaccines require no booster shots.
All three types of vaccines can cause the diseases they are attempting to destroy, so they are not used in any patient who has a compromised immune system.
In some ways, Christ is like the attenuated vaccine. He offered his sacrifice, once for all; no booster shots are required.
