<div><p>WASHINGTON (Reuters) - The United States has made no decision on whether to cancel or sell any of its orders for the H1N1 vaccine, unlike some European countries with a vast oversupply of shots, a federal health official said on Thursday.</p><p>Dr. Anne Schuchat of the U.S. Centers ...

<div><p>Drugmaker MedImmune is recalling nearly 5 million doses of swine flu vaccine because the nasal spray appears to lose strength over time, federal health officials announced Tuesday.</p><p>The vaccine recall is the second this month caused by declining potency and comes as public health officials urge millions of ...

<div><p>There's no evidence that the swine flu vaccine is causing any serious side effects, U.S. health officials said Wednesday, in their first report on the safety of the new vaccine.</p><p>Since vaccinations began in early October, the government has been tracking the safety of the swine ...

<div><p>WASHINGTON (Reuters) - The pandemic of swine flu may be hitting a peak in the United States, health experts said on Friday.</p><p>But they stressed that influenza, especially a pandemic, could hit several peaks in a single season. They said weeks or months more of disease could be expected ...