<div><p>WASHINGTON (Reuters) - Younger children will need two doses of the vaccine against the new pandemic of H1N1 influenza, U.S. officials said on Monday.</p><p>They said tests of Sanofi-Pasteur's swine flu vaccine showed children respond to it just as they do to seasonal flu vaccines, with ...

<div id="subtitle">Govt says 1 swine flu shot enough to protect kids 10 and older, but younger may need 2</div><div><p>Studies of the new swine flu vaccine show children 10 and older will need just one shot for protection — but younger kids almost certainly will need two.&lt ...

<div><p>US health officials announced "more good news" Monday in the fight against swine flu, saying clinical trials have shown that a single dose of H1N1 vaccine will be enough to immunize healthy older children.</p><p>"Preliminary data from our trials indicate that a single 15-microgram dose of vaccine is ...

<div><p>Influenza is circulating unusually early this year with cases in all 50 states — nearly all the swine flu variety, government health officials said Friday.</p><p>The highest concentration of flu cases is in the Southeast and a few other states, Dr. Anne Schuchat of the Centers for Disease Control ...