History of Vaccines

 

History of Vaccines

Vaccines have revolutionized global health, eradicating viruses like smallpox and nearly eliminating poliovirus - diseases that previously killed millions of people. The number of people who contract preventable infectious diseases like measles, diphtheria and whooping cough is at an all-time low, thanks to vaccines.

What is vaccination?

Vaccination is a simple, safe, and effective way of protecting people against harmful diseases, before they come into contact with them. It uses your body’s natural defenses to build resistance to specific infections and makes your immune system stronger.

Vaccines train your immune system to create antibodies, just as it does when it’s exposed to a disease. However, because vaccines contain only killed or weakened forms of germs like viruses or bacteria, they do not cause the disease or put you at risk of its complications.

Most vaccines are given by an injection, but some are given orally (by mouth) or sprayed into the nose

Disease name- vaccine name- year invented

The story of vaccines did not begin with the first vaccine–Edward Jenner’s use of material from cowpox pustules to provide protection against smallpox. Rather, it begins with the long history of infectious disease in humans, and in particular, with early uses of smallpox material to provide immunity to that disease.

Evidence exists that the Chinese employed smallpox inoculation (or variolation, as such use of smallpox material was called) as early as 1000 CE. It was practiced in Africa and Turkey as well, before it spread to Europe and the Americas.

      

 

18th century


19th century


20th century

21st century

 

Citation:

https://www.who.int/news-room/feature-stories/detail/how-are-vaccines-developed?gclid=Cj0KCQjwpf2IBhDkARIsAGVo0D2zWqdF7UChbexz5oLsPMZwciN90QG_OdfW6mOUjN0NvHtwByrm1j4aAlbMEALw_wcB


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