Diphtheria killed how many kids: 1 100,000 500 200,000
The first vaccine was invented by Edward Jenner in 1796 and would then soon be able to be injected into people.
The three vaccine were combined into DTP vaccine. Which people will then able to get immunizations that would protect them against pertussis, diphtheria, and tetanus.
Diphtheria was once the most common death of children killing approximately 200,000 people per year. It was seen during the 1920's and it is now rare, but is re-emerging in some areas of the world.
Tetanus is an infection that is caused through bacteria. It is a serious illness that can be developed through a deep cut or through a burn. It also causes painful tightening of the muscles.
This is really dirty Jessica
I really have to go
Smallpox is very contagious and was the cause of 300 to 500 million deaths in the 20th century more than double the deaths of people killed during the wars in that period. Also there is no cure, but their are vaccines that prevent it. Today we haven't seen any cases of smallpox.
Pertussis is a type of uncontrollable cough. Before the arrival of the vaccine it infected an average of 200,000 people per year in the United States. Since the arrival of the vaccine cases have fallen, but still kills almost 195,000 childern each year.