The flu is a respiratory illness triggered by infection with an influenza virus. Our guide explains the types of flu tests and when and how they may be used.
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Understanding the method used for a test provides a broader context for understanding your test results. Learn about a few common laboratory methods mentioned on this site.
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Dengue fever is a viral infection spread by mosquitoes that causes symptoms such as high fever, severe headache and pain behind the eyes, bleeding and easy bruising. Blood testing detects the dengue virus or antibodies produced in response to dengue infection.
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