by millionairemind » Sun Oct 18, 2009 9:42 am
Oct 17, 2009
H1N1 can kill fast
WASHINGTON - THE new H1N1 flu is 'strikingly different' from seasonal influenza, killing much younger people than ordinary flu and often killing them very fast, World Health Organization officials said on Friday.
A review of studies done during the seven months the virus has been circulating shows it is usually mild, but can cause unusual and severe symptoms in an unlucky few, according to a WHO-sponsored meeting in Washington this week.
'In severe cases, patients generally begin to deteriorate around three to five days after symptom onset. Deterioration is rapid, with many patients progressing to respiratory failure within 24 hours, requiring immediate admission to an intensive care unit,' Dr Shindo said.
The good news is that quick treatment with the antiviral drugs oseltamivir, made by Roche AG under the brand name Tamiflu, and zanamivir, made by GlaxoSmithKline as Relenza, helps a great deal, she said.
Usually influenza is a disease of the upper respiratory tract, affecting the nose and throat. But H1N1 goes deeper, into the lungs.
'This virus really likes the lower respiratory tract. That means this virus is very likely to cause viral pneumonia compared to seasonal influenza,' Dr Shindo told a news conference. -- REUTERS
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