Answer:
Bacterium: Many vaccines are created by taking bacterium from the virus inactivating it (no longer can it become a disease) and then injecting it into us so we know how to fight off that virus.
Germ: Vaccines are very important as it can protect us from harmful viruses and germs.
Smallpox: Edward Jenner created a vaccine for smallpox not even understanding the basic germ theory.
Immunity: Immunity happens when we have been vaccinated, our body knows how to fight off the virus.
Polio: On March 26th, 1953 Dr. Jonas Salk, a medical researcher invented a polio vaccine.
Rabies: My dog had to be vaccinated with a certified rabies vaccine before taking him across the border.
Explanation:
