vaccine are what
A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing micro-organism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins.ome vaccination critics say that vaccines are ineffective against disease or that vaccine safety studies are inadequate. Some religious groups do not allow vaccination, and some political groups oppose mandatory vaccination on the grounds of individual liberty.
Vaccines are medicines that boost the immune system's natural ability to protect the body against âforeign invaders,â mainly infectious agents, that may cause disease. The immune system is a complex network of organs, tissues, and specialized cells that act collectively to defend the body.ancer preventive vaccines target infectious agents that cause or contribute to the development of cancer (8). They are similar to traditional vaccines, which help prevent infectious diseases, such as measles or polio, by protecting the body against infection.