Live vaccines are created using weakened versions of the diseases they were designed to protect against. These weakened versions are not strong enough to cause sickness, but they are still able to stimulate the body's immune system to create antibodies to protect the person against the disease. However, this immune response may not be effective in people with weakened immune systems, such as those with immune deficiencies.
Immune Deficiencies
Immune deficiencies are a range of medical conditions where the body's immune system is weakened, meaning it is unable to fight off infections and diseases. Examples of immune deficiencies include HIV, AIDS, and some types of cancer. People with an immune deficiency may also have a higher risk of developing serious complications from certain infections, such as bacterial pneumonia.
Why Live Vaccines Are Not Recommended for People with Immune Deficiencies
Due to the weakened immune system of people with an immune deficiency, it is not possible for them to build up the necessary immunity to fight off the disease from the weakened virus used in live vaccines. This means that there is a risk that the person could become infected with the virus, leading to serious health complications. Additionally, live vaccines can cause more serious side effects in people with weakened immune systems, which could further compromise their health.
For these reasons, live vaccines are not recommended for people with immune deficiencies. Instead, they are recommended to use inactivated vaccines, which do not contain any live virus. Inactivated vaccines are not able to cause infection, but still stimulate the body's immune system to create antibodies against the disease. This is a much safer option for people with weakened immune systems.
Conclusion
Live vaccines are not recommended for people with immune deficiencies due to the risk of serious complications. Inactivated vaccines are a safer option, as they are not able to cause infection but still stimulate the body's immune system to create antibodies against the disease.