BA A 15 year old boy goes to the physician after stepping on…

BA A 15 year old boy goes to the physician after stepping on a rusty nail. The physician is concerned that he may develop a tetanus infection and in addition to giving the boy antiserum, he gives him an injection of tetanus toxoid (inactivated tetanus toxin). Which of the following is accurate in terms of describing mechanism of action for this toxin?

SP A 2-month- old child is rushed to the hospital with diffi…

SP A 2-month- old child is rushed to the hospital with difficulty breathing and seeming “floppy.” It is thought that she contracted the etiologic agent by exposure to raw honey used to encourage her to take a formula bottle. Which of the following bacteria is most associated with this presentation?