The History of Vaccines explores the role of immunization in the human experience and examines its continuing contributions to public health

About This Project

Vaccine Side Effects and Adverse Events

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A vaccine is a medical intervention, and as with any medical intervention, may have side effects. This article discusses side effects and adverse events related to vaccination. More

Careers in Vaccine Research

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A variety of careers are available in basic vaccine research and development, clinical trials, production, and distribution of vaccine to the public. These jobs are available in universities, industry, government laboratories and agencies, hospitals, and on the front line of vaccine distribution all over the world. More

Different Types of Vaccines

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Vaccines are made using several different processes. They may contain live viruses that have been attenuated (weakened or altered so as not to cause illness); inactivated or killed organisms or viruses; inactivated toxins (for bacterial diseases where toxins generated by the bacteria, and not the bacteria themselves, cause illness); or merely segments of the pathogen (this includes both subunit and conjugate vaccines). More

The Human Immune System and Infectious Disease

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The human immune system is essential for our survival in a world full of potentially dangerous microbes. More
Which now vaccine-preventable disease may have emerged in epidemic form as a result of increasing cleanliness of the water supply?
Measles
Polio
Whooping cough
Diphtheria
B

The improved American sanitary conditions of the early 1900s meant that exposure to polio was delayed until later in life, when a child had lost maternal protection and was also more vulnerable to the most severe form of the disease. Read more in our polio timeline.