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WASHINGTON, Feb 26 (Reuters) - An antibody being developed by a Dutch drug company chokes off both seasonal flu and the H5N1 avian flu virus and might offer a way to develop better treatments and vaccines, researchers reported on Thursday.

Is sunshine more than just a home remedy for a cold? New research suggests it may be: In a study that will be published tomorrow, people with low levels of vitamin D - also known as the "sunshine vitamin" - were more likely to catch cold and flu than folks with adequate amounts. The effect of the vitamin was strongest in people with asthma and other lung diseases who are predisposed to respiratory infections.