- The human body protects itself by stimulating immune response from the vaccination, which can be a weakened form of the disease or a strand similar to it. According to EDinformatics, immunogens are created to help the immune system to protect against the disease.
- Edward Jenner coined the term vaccination after he used weakened microbes of cowpox on his patients. This allowed the human body to create a immunization against smallpox, which is fairly contagious and can be deadly.
- Edinformatics states that Louis Pasteur continued along the path Jenner had started by creating vaccinations against bacterial anthrax and viral rabies. Both can be deadly if not dealt with properly. Other vaccines include: measles, mumps and rubella--or MMR; flu--influenza virus; human papillomavirus--HPV; and chickenpox.