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

More

Chickenpox (Varicella)

001242
Chickenpox is an illness caused by the Varicella zoster virus. It was once an almost universal childhood illness. It is much less common now owing to widespread vaccination. More

Pneumococcal Disease

000792
Streptococcus pneumoniae bacteria, also called pneumococcal bacteria, are one of the leading causes of illness in young children. They can cause pneumonia, bloodstream infections, meningitis, sinusitis, and middle ear infection. More

Different Types of Vaccines

000501
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

000635
The human immune system is essential for our survival in a world full of potentially dangerous microbes. More
How many serotypes does the adult pneumococcal polysaccharide vaccine include?
3
13
23
33
C

The adult polysaccharide vaccine includes 23 serotypes. Read more.