Live vaccines are among the most effective and safest forms of immunization. Live vaccines contain weakened forms of the virus or bacteria that cause the disease, and when introduced to the body, they stimulate the immune system to create antibodies and provide protection against future infections. These types of vaccines are administered by injection or by mouth, and are also known as “attenuated” vaccines.
Live vaccines are very safe, and have been used successfully for many years to protect millions of people from serious illnesses. The weakened virus or bacteria used in these vaccines is not strong enough to cause the disease, but it still stimulates the body to create immunity. Most of the time, the side effects of live vaccines are mild, and may include soreness, redness, and swelling at the injection site, as well as a low-grade fever and body aches.
Although live vaccines are generally considered to be safe, there are certain individuals who should not receive them. These include people with weakened immune systems, such as those with HIV, cancer, or other serious illnesses; pregnant women; and people who are allergic to any of the components of the vaccine. Additionally, live vaccines should not be given to people with a history of severe reactions to vaccines.
Overall, live vaccines are safe and effective for most people, and are an important part of disease prevention. Talk to your doctor if you have any questions or concerns about the safety of live vaccines.