A vaccine is created by taking a weakened or killed form of a disease causing micro-organism that causes your body to produce antibodies against that organism and provide immunity without actually inducing the disease. Vaccines are a very controversial topic and this episode is an introduction to what vaccines are and gets into specifics on the Tdap vaccine during pregnancy. In addition to different types of vaccines, there are many ingredients that can be included in vaccines to serve a particular function like increasing your immune response or as a byproduct of the processing. Tdap is one of two vaccines recommended during pregnancy that provides immunity for tetanus, diphtheria, and pertussis (whooping cough). Get the benefits and risks of getting the Tdap vaccine during pregnancy so you can make an informed decision on whether it is right for you.