Types of vaccines Not all viruses are alike, and how scientists create a vaccine depends on several characteristics of the disease including: There are four types of vaccines based on how they ...

A vaccine against meningococcal disease or any other disease works by generating an immune response in the body against some kind of pathogen—a virus, bacterium, or some other agent that causes ...

The spy agency's assessment was based on an unspecified intelligence operation code-named "Saaremaa" as well as on ...

Children typically get doses of PCV vaccines at 2, 4, and 6 months, and then once again between 12 and 15 months. For adults, the timing and type of vaccine depend on whether you have had a ...

If a person has been infected with any of the four strains the vaccine protects against, the vaccine won't provide protection against that type. But it will prevent infection from the other three.

INFLUVAC TETRA is an influenza vaccine containing inactivated fragments from four types of influenza virus. This type of vaccine is also known as a quadrivalent influenza vaccine. INFLUVAC TETRA ...

Many vaccines add an adjuvant -- a substance that boosts the action of your immune system against the cancer. Another type of vaccine uses your own immune cells to fight the cancer. Doctors take ...