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The children suffered no adverse effects, but the error raised questions about how carefully the vaccination program is being carried out.

Also, officials announced that nearly 25 million doses of swine flu vaccine are now available, and many vaccination clinics are expected to be held this weekend.

Diarrhea and pneumonia kill millions of children and are easily treatable, but wealthy nations’ focus remains on the costly fight against AIDS.

The Titans are switching from the veteran quarterback Kerry Collins back to Vince Young, the No. 3 overall pick in the 2006 draft.

The tone set by the N.F.L. on injuries can influence the safety of players at various levels of play, and Commissioner Roger Goodell was pressed to step up public education efforts.

A new study documents higher death rates among hospitalized children who lack insurance. But why?

The government has switched its public Web site to Drupal technology, giving a big boost to the open-source software.

New studies suggest that research and development spending and patent activity have continued to grow despite the recession.

Everyone agrees that children face a digital divide over access to technology, but how serious is the gap and what can be done about it?

Robert W. Moffat Jr., a senior I.B.M. executive implicated in the federal Galleon Group insider trading case, has left I.B.M., the company said.

While Democrats rejoiced, Republicans responded that gimmicks had been used to hide the measure’s long-term costs.

Researchers urged the Food and Drug Administration to create a standardized fact box for prescription medicines.

The cellphone maker said it would sell fewer phones this quarter as it focused on more expensive smartphones over mass-market phones.

Bowing to pressure from some Democrats, Speaker Nancy Pelosi agreed to negotiate fees with doctors and hospitals.