Diphtheria is a very contagious and potentially life-threatening bacterial disease that primarily affects the nasal passages, throat, and lungs. In some instances, the infection can spread or attack the skin, heart, and nervous system. Immunization efforts have been able to keep ...

  • Loading...
locked icon

Sign in to access this content

Get a 30 day FREE TRIAL

  • Watch videos from a variety of sources bringing classroom topics to life
  • Read modern, diverse business cases
  • Explore hundreds of books and reference titles