A universal flu vaccine to protect against all strains of the flu doesn't exist yet. But a new one does appear to protect against four flu strains at once.

Sometimes it's easy to forget how common many diseases were before vaccines for them were introduced. When the disease is not around, people may not notice as much.

In 2009, there were concerns across the world about the H1N1 flu. It turns out that, overall, death rates from this flu pandemic weren't worse than those of other flu seasons — at least for some.

One of the best ways to avoid the flu is to get the annual flu vaccine. Yet many children will still get the flu each year and possibly need hospitalization. Can antivirals help?

It's flu season again, and there are ways to protect your children against the flu. A recent study revealed how serious the flu can be.

For years, health officials have been aiming to increase rates of flu vaccination across the US each flu season. While new data shows that more and more people seem to be getting vaccinated, the rates of the increases are slower than desired.

The main purpose of the flu vaccine is to protect against influenza. But it may offer other benefits as well.

Everyone is urged to get a flu shot, but what should you do if an allergy might interact with the vaccine? Risk the flu or risk the allergic reaction?  For many patients, these concerns have now been addressed.

Doctors often tell their patients to get the flu shot. But how many healthcare professionals are taking that step themselves?

Even though the flu is a common illness each winter, that doesn't mean it's not a dangerous one. Children with certain chronic conditions are especially prone to complications from influenza.