In biology, the term "vaccinated" refers to the process of introducing a weakened or killed strain of a virus or bacteria into the body in order to induce an immune response. This response triggers the body's production of antibodies, which are proteins that are specific to that virus or bacteria. This is called active immunity because the body is actively producing the antibodies to fight off the virus or bacteria. After this initial introduction, the body keeps these antibodies ready in case it is ever re-exposed to the virus or bacteria. Vaccination is the most common way to achieve this active immunity.
The process of vaccination involves introducing a weakened or killed form of a virus or bacteria into the body, either through injection, ingestion, or topical application. This weakened form is called a vaccine. When the vaccine is introduced, the body recognizes it as foreign and mounts an immune response. During this response, the body produces antibodies specific to the virus or bacteria. These antibodies remain in the body and are ready to fight off any future exposure to the virus or bacteria.
Vaccination is an important part of public health as it prevents the spread of many infectious diseases. Vaccines are available for a variety of viruses and bacteria, including those that cause polio, measles, mumps, rubella, tetanus, diphtheria, whooping cough, and many more. By vaccinating a population, the spread of these diseases can be significantly reduced.
In summary, vaccinated means to introduce a weakened or killed strain of a virus or bacteria into the body in order to induce an immune response. This response results in the production of antibodies specific to the virus or bacteria, which remain in the body and are ready to fight off any future exposure to the virus or bacteria. Vaccination is an important part of public health as it prevents the spread of many infectious diseases.
