Pneumococcal disease is a serious infection caused by a bacteria. Pneumococcal bacteria can
infect the sinuses and inner ear. It can also infect the lungs, blood, and brain, and these conditions can
be fatal.
Pneumococcal conjugate vaccine (PCV) is used to prevent infection caused by pneumococcal
bacteria. PCV contains 7 different types of pneumococcal bacteria.
PCV works by exposing your child to a small dose of the bacteria or a protein from the
bacteria, which causes the body to develop immunity to the disease. PCV will not treat an active
infection that has already developed in the body.
PCV is for use only in children between the ages of 6 weeks and 10 years. For adults and
children who are 2 years of age and older, another vaccine called Pneumovax (pneumococcal
polysaccharides vaccine [PPV] 23-valent) is used.
Becoming infected with pneumococcal disease (such as pneumonia or meningitis) is much more
dangerous to your child's health than receiving the vaccine to protect against it. Like any medicine, this
vaccine can cause side effects, but the risk of serious side effects is extremely low.
Like any vaccine, PCV may not provide protection from disease in every person.