Preventable diseases can still be big threats to public health. Measles is one such disease. Though the condition can be avoided, it can still spread and cause major health problems.

The goal of developing new vaccines is to decrease the cases of certain illnesses. The vaccine for pneumonia appears to have done just that.

Each year a new flu vaccine is created to try to match up with the strains of flu that are going around. What happens if the flu vaccine isn't a perfect match for the strain of virus it's fighting?

A pregnant woman should stay as healthy as possible to keep her baby safe and healthy. This includes protecting herself from infectious diseases.

The flu vaccine is one vital part of reducing your risk of flu. But what if you're allergic to eggs, which are used to make flu vaccines? There's a new option for you.

Medical advances have changed the future of today's patients with HIV. Most children with HIV grow into adults these days. But that presents challenges, too.

Little kids are notorious for having runny noses a lot of the time. It can be hard to tell the difference between allergies, a cold and a more serious infection. Research data can help.

When flu season is around the corner, you're likely to see lots of reminders to get the flu vaccine. Is the flu vaccine likely to make much of a difference?

Only one vaccine currently protects against an infection that can directly cause cancer — the HPV vaccine. Good news about that vaccine is that research is showing that it's working very well.

Most parents get their children all the recommended vaccines. Yet, they might wonder how effective those vaccines are. Vaccines are tested for safety and effectiveness regularly.