Note: Please, do not use any topic relating to COVID-19. Choose a topic As a primary portal of entry to the body, the respiratory system in frequently in contact with a variety of pathogens. Luckily, we have options available for preventative measures for the various diseases in the form of vaccines. The purpose of a vaccine is to elicit a primary immune response to form memory cells and provide protection against the disease, but the person does not become ill from the vaccine. The goal of this discussion is to have you select one vaccine preventable disease and discuss the type of vaccine utilized for disease prevention. Your post must contain the following information: The vaccine preventable disease you selected The pathogen, portal of entry, and primary site of infection Type of vaccine (attenuated, dead, toxoid) Effectiveness of vaccine Disease incidence since vaccine implementation Please be sure to validate your opinions and ideas with citations and references in APA format.