Vaccines

Scientists are racing to create a vaccine. The latest effort being tested uses inactivated virus, a technique that has been used successfully to fight other diseases, and human volunteers.

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There's plenty of vaccine available this year, and the sooner people get vaccinated the better, federal health officials say. A recent drop in vaccination, especially among the elderly, concerns them.

A survey of nearly 66,000 people worldwide reveals where parents have the most — and least — confidence in vaccines.

The American Academy of Pediatrics doesn't recommend using the nasal spray flu vaccine. In late August, the federal Centers for Disease Control and Prevention concluded it wasn't up to snuff.

In June, the CDC said the popular nasal flu vaccine isn't effective based on its use in U.S. children. But a new Canadian study says that it does indeed work. It's not at all clear who's right.

There are plenty of proven techniques that can help parents soothe the sting of the needle. And guess what? A parent's attitude can matter more than the actual pain of the shot.

A CDC advisory panel concluded the nasal spray vaccine is so ineffective that it shouldn't be used by anyone during the 2016-2017 flu season. Until 2015, the spray was the top choice for kids.

A panel of advisers to the Centers for Disease Control and Prevention recommended against using a needle-free flu vaccine that's popular with pediatricians, parents and children.

Seizures caused by fever are frightening, even though they don't harm long term. And a few vaccines do slightly raise the risk of a febrile seizure. But not being vaccinated poses a greater risk.